Location-Efficient Mortgages

By Dom Nozzi, AICP

Mortgage lending typically does not consider the financial burden of commuting and other transportation costs for a family living in a remote, single-use (i.e., only residential land use) suburban area.

By living in a house that is remote from jobs, schools, shopping, and recreation/culture means that the household must spend more for transportation — usually by owning a relatively large number of cars. Research by the National Resources Defense Council (NRDC) has shown that a typical family living in a more central location in Oakland drives only half as much as a similar family in a more remote location. The savings were measured at about $750 per month. Others report savings of $300 to $600 per month.

Higher overall payments (travel and mortgage) make the more remote home more risky to the lender than a comparable loan in a more central location.

The hope of groups supporting what are called “location-efficient” mortgages is that the lending formula can be changed so that a dollar a month saved on transportation can be applied to a dollar a month higher loan payment. As a result, families wanting to purchase a home in a more “location efficient” area could qualify for a higher mortgage than a family purchasing a remote, less location-efficient home.

Location-efficient mortgages create a way for banks and mortgage lenders to recognize the transportation savings that an “access rich” central location is able to benefit from. A portion of these savings can be used by such institutions to “stretch” their standard income-to-expenses ratios that are part of the mortgage application process.

Of course, this concept is a powerful affordable housing tool as well. With this approach, like the Energy Star mortgage program (commonly called “energy-efficient mortgages”), a lower income household could qualify for housing that would otherwise be “unaffordable” under conventional lending rules.

Location-efficient mortgages acknowledge that families save money when they “live locally.” Those who shop, work, go to school, and enjoy parks or culture locally don’t need to travel as much because their more compact and populated (location-efficient) area is pedestrian-friendly and amenity-accessible.

In the neighborhood which has good accessibility, residents can walk to the grocery store, ride the bus to work, pick up the laundry on the way home from work, walk to the park on weekends, and bike to the shopping center for weekend errands. Households are more likely to own one car, instead of two or more, and drive less than 900 miles per month.

By contrast, neighborhoods that provide good mobility are ones where residents live in a more sparsely settled area with one-acre lots on cul-de-sacs and other disconnected roads without sidewalks. Households often must depend on two or more cars to provide the mobility tasks that members of the household must deal with — tasks that the “access-rich” households often perform by walking, bicycling, or using the bus. Such households must devote an enormous amount of time to travel by car, which means, among other things, loss of free time, emission of relatively large amounts of air pollution, and consumption of relatively large amounts of gasoline.

Patrick Hare claims he came up with the idea originally. He called it “Near Transit (one car) Mortgages.” His point was that if a household was in a location-efficient area, it would be better able to shed the second household car. By doing so, about $3,000 per year could be saved — which translates into being able to make mortgage payments for a mortgage of about $34,000 with this money saved.

“Location Efficiency” is emphasizes how accessible things like jobs and parks and shopping are, rather than how mobile one must be to find such needed goods and services. A strong correlation has been found between a location-efficient house and how many miles are driven each year and the number of cars owned by a household. The key correlative factors for location efficiency are:

Relatively high residential density

Good access to public transit

Good access to shopping, services, cultural amenities, and schools

Good pedestrian “friendliness” of sidewalks, bikeways, benches, lighting, and plantings

The author of the study that found these correlations states that it is possible to project auto ownership and usage, and thus average travel costs, with good reliability.

The Internet now has something called “Location-Efficient Mortgage Advisor” software that a lender could use to determine mortgage qualification. It contains an area map which shows the location of the property that the hypothetical buyer is considering buying, and any bus stops, train stations, and principal cultural features near the property. It would also indicate walking distances. This information is merged by the software, which then calculates a “Location Efficient Value” (LEV), and enters a predetermined portion of the LEV into the mortgage formula calculation. (For those of you who enjoy playing with mortgage calculations, the Web page I cite below goes into detail that I won’t bore you with about how the “location-efficient mortgage” would work.)

To summarize, the benefits of the location-efficient mortgage are:

Creates affordable housing. Encourages home ownership opportunities for low- and moderate-income households.

Stimulates home purchases in low- and moderate-income urban neighborhoods.

Increases transit ridership.

Promotes infill and establishes a financial disincentive for sprawl

Supports local consumer services and cultural amenities.

Cuts energy consumption

Improves regional and local air quality.

Is all this a pipe dream that is too good to be true? Not at all. It is starting to happen. The Federal National Mortgage Company (“Fannie Mae”) was slated to do a market test of location-efficient mortgages in Chicago in February 1998.

The project is expected to help Fannie Mae achieve its “One Trillion Dollar Commitment” to expanded home ownership opportunities for low- and moderate-income households.

Some of the organizations that are supporting the location-efficient mortgage initiative are:

The Center for Neighborhood Technology

National Resources Defense Council

US Dept of Energy

US Dept of Transportation

Environmental Protection Agency

Surface Transportation Policy Project

Federal Transit Administration

The Chicago Public School System

The Chicago Board of Realtors

Sources for the above info:

Earthword, Issue #4

Center for Neighborhood Technology WWW Page

Contacts:

James “Kim” Hoeveler. 312-278-4800 email: hoeveler@cnt.org

Location-Efficient Mortgage Home Page: http://www.cnt.org/lem/

Patrick Hare 202-269-9334

David Goldstein 415-495-5996

 

2 Studies: SubUrban Sprawl Adds Pounds, Pollution

by Eric Pryne

Seattle Times

January 26, 2006

 

 

Residents of King County’s less-walkable neighborhoods – can you say sprawl? – are more likely to be overweight, a recently completed study concludes.

Another related study has found, perhaps not surprisingly, that people who live and work in those neighborhoods generate more auto-related air pollution, another potential threat to health.

The two studies’ findings are summarized in the winter edition of the peer-reviewed Journal of the American Planning Association. The authors, who collaborated in their research, say their work constitutes the most comprehensive look yet at the link between urban-development patterns and human health in a single metropolitan area.

Earlier research has raised the possibility of a connection between sprawl, obesity and other health problems. The King County results suggest “current laws and regulations are producing negative health outcomes,” the authors warn.

“None of this is saying suburbia is bad,” said Lawrence Frank, an urban-planning professor at the University of British Columbia and co-author of both studies. “It just says these are the relationships you get … and they should be taken into account.”

A top aide to King County Executive Ron Sims said the county already has adopted some changes as a result of the studies and is planning more.

The research isn’t likely to end the debate over sprawl and health.

“If you’re listing things that impact obesity, neighborhood design would be maybe 10th on my list,” said Tim Attebury, King County manager for the Master Builders Association of King and Snohomish Counties. “I would put McDonald’s and too much TV way in front of neighborhood design.”

But Frank and co-author James Sallis, a health psychologist at San Diego State University, said the two new studies go beyond previous work in showing that development patterns can have a significant impact on health even when taking into account other variables such as age, income, education and ethnicity.

The walkability factor

For both studies, researchers ranked neighborhoods using a “walkability index” that included such factors as residential density, the number of street connections, and the mix of homes, stores, parks and schools. All are believed to influence how much people walk.

In one study, funded by the National Institutes of Health, researchers surveyed and monitored about 75 adults in each of 16 King County neighborhoods. Eight neighborhoods, including Upper Queen Anne and White Center, scored high on the walkability index; the other eight, including Kent’s East Hill and part of Sammamish, scored low.

Each group of eight included four wealthier and four lower-income neighborhoods.

On average, researchers found, the Body Mass Index – a measure of height and weight – of residents of the more walkable neighborhoods was lower, and they were more likely to get the U.S. Surgeon General’s recommended 30 minutes of daily exercise.

In the second study, funded by the Federal Transit Administration, King County and other local governments, researchers estimated the auto-related pollution generated by about 6,000 King County residents who kept detailed records of their travel for two days in 1999 as part of another study.

Again, people who lived and worked in more walkable neighborhoods produced fewer pollutants associated with smog, the study found.

Surprising finding

After subjecting the data to statistical analysis, Frank said, researchers were surprised to learn that even small changes in neighborhood design can make a difference.

A 5 percent increase in a neighborhood’s walkability index, for instance, was associated with a 0.23-point drop in Body Mass Index. For someone 6 feet tall, that’s a difference of less than 2 pounds, but Frank said bigger changes in a neighborhood’s walkability would be expected to produce greater differences in weight.

The presence or absence of stores, parks, schools and other destinations within a quarter- to a half-mile of home appears to be the most important factor in how much people walk, he said.

Karen Wolf, a senior policy analyst in Sims’ office, said that as a result of the studies, the county already has amended the policies that guide its planning to make health a priority.

County officials also are working on a checklist to rate development projects’ impact on health, she said.

In White Center, one of three neighborhoods that Frank and other researchers studied in detail, Wolf said the county has rezoned property to encourage “mixed-use” development that allows both housing and shops, and is seeking a grant to develop an inviting walkway between a redeveloped housing project and the community’s business district.

“The whole idea is to make walking something you don’t even think about,” she said. “It’s part of your everyday life.”

 

Elevated Skywalks Start Coming Down

1/11/06

By Lisa Cornwell the associated press

CINCINNATI – Sunlight is replacing shadows where elevated walkways spanning streets around Cincinnati’s downtown square have been torn down. Similar open spaces are appearing in other cities where planners once hoped skywalks would energize their downtowns. “More cities are realizing that skywalks are not what they were cut out to be,” said Fred Kent, president of Project for Public Spaces, a New York City-based nonprofit organization that helps communities create and sustain public places. “Instead of drawing additional people and retail to a second level, skywalks have left streets lifeless, presenting a cold and alienating environment.” While skywalks remain popular in some cold-weather cities such as Des Moines, Iowa, an increasing number of cities have started tearing down some of their walkways or would like to remove them. Planners and others in cities such as Cincinnati, Baltimore, Charlotte, N.C., Hartford, Conn., and Kansas City, Mo., now believe increasing street-level pedestrian traffic will lead to more downtown homes, shops and entertainment. “Having people on the streets sends the message that downtown is a safe and fun place to be,” said Marya Morris, senior research associate with the American Planning Association. “It’s difficult to create the type of energy that attracts housing and other activity when there is no one on the streets after 5 p.m.” Skywalks vary from enclosed, climate-controlled corridors with windows to open bridges with and without roofs. The pedestrian walkways connect second stories of buildings and often are part of large networks that wind through downtown, with shops and services located in sections that pass through buildings. Planners estimate that between 20 and 30 cities across the United States at one time embraced the design concept. The mostly glass-and-steel skywalks that were constructed beginning in the 1960s and ’70s were intended to insulate pedestrians from weather and street crime and compete with suburban malls.

But tourists often have trouble navigating skywalks, where access is often inside hotels and office buildings. Workers now make up most skywalk users, but with offices also fleeing downtowns, even that traffic has dwindled. Cincinnati City Architect Michael Moore said the difference is striking around Fountain Square since two of the city’s original 22 skywalk bridges were removed as part of a renovation to make the square a more welcoming, downtown center. “Even though the square still resembles a war zone with the ongoing reconstruction, it looks so much larger and brighter,” he said. Other skywalks link office buildings and are popular with workers. “I think they are neat, and I hate to see some of them coming down,” said Cincinnati office worker Cheryl Borkowski, 45, of Florence, Ky. “On cold and rainy days, you can take the skywalk everywhere you need to go. For me, it’s a matter of time and convenience.” Baltimore has pulled down two of its nine skywalks and more may come down as the city directs development efforts toward the ground level, especially around the Inner Harbor district, said Jim Hall, a city planner. The ring of shops, hotels, restaurants, parks and other attractions around the city’s harbor has become a major downtown tourist destination. “All of the excitement now is at the base of buildings where people can stroll through attractive public spaces and walk along promenades,” Hall said. “I don’t see us constructing any more skywalks.” Many skywalks were built with public and private money, making it difficult to get rid of the sections that run through office buildings where executives and workers want to keep them for convenience. Cost also is a factor. In Cincinnati, it cost about $100,000 to tear down a section that was not enclosed and did not have heat or air conditioning, Moore said.

 

A Realizable Smart Growth Vision

by Rick Cole

 

The Planning Report, Los Angeles CA, Dec/Jan 2005

Rick Cole, currently the City Manager of Ventura, has been for years a leading Southern California voice for good government and planning. Rick has been City Manager of Azusa, and before that served as Mayor of Pasadena. TPR is pleased to publish excerpts from a recent speech he delivered in November as part of the USC School of Policy, Planning, and Development’s Urban Growth Seminar lecture series, titled “Smart Growth in Southern California: How Pasadena Made It Happen; How Ventura Will Make It Happen.”

 

I want to start with a disclaimer. This is not about planning. This is not about architecture. This is about vision. I am in awe of the kind of people who understand the planning and the architectural elements that go into smart growth. But the reality is we’re not going to get smart growth in Southern California (or anywhere else) until there is an alternative vision of smart growth that is as compelling as the suburban vision that has animated public policy and popular imagination since World War II.

I am convinced that the places that offer that vision, that alternative model, will change the world. Because the stakes are not about Southern California. In Southern California, there are seven parking spaces for every car, and there are more cars than there are registered drivers. This is a problem. But in China, when they end up with more cars than registered drivers – if they follow our pattern of development and put seven parking spaces for every car, that’s eight billion parking spaces. That’s not a problem; that is an ecological and social catastrophe. If we cannot fix the way we live and build in Southern California, the mother of sprawl, we will be responsible for a worldwide economic meltdown. So we have an opportunity and a responsibility. And I think we can change the world one city at a time.

…What happened [when Pasadena collaborated on a new General Plan in 1992] was little short of miraculous, because we stopped asking the question, “Should we grow?” which is a question that bedevils all of Southern California. It turns out that “Should we grow?” is a really stupid question, because we’ve been growing for 100 years and no one has figured out how to stop growth. Instead, when we shifted the question from whether we should grow to “How we should grow?” and “Where we should grow?” two things happened. One, a lot of the polarizations literally melted like snow in the spring. Second, a lot of the people who had been ready to strangle each other suddenly found themselves fast friends. The people all agreed that growth ought to happen in the places where growth would benefit neighborhoods that were either worn out through disinvestment or neighborhoods that had infrastructure capacity and vacant land, and not in low-density, healthy, intact neighborhoods. Once we figured out the “where,” then the “how” was something we now call “smart growth.”

…You can’t beat sprawl without an alternative vision. In Pasadena, the alternative vision was called “Imagine a Greater City.” The seven principles were written specifically so that people could understand them. Literally these 85 words that articulate the seven principles were the words that people voted on. The ballot said: “Shall the voters of the City of Pasadena adopt a new General Plan, based upon the following seven principles?” The majority of the citizens of Pasadena checked “yes” to these seven principles at the November 1992 election – the highest voter turnout until this last November.

…The lessons from Pasadena that apply to Ventura and other communities begin with asking the right questions. It’s not copying Pasadena’s plan, nor even the seven principles. Not every place wants to have a downtown like Old Pasadena. Some places want to be towns, some places want to be cities, and some places need to be metropolises. This is something about New Urbanism that gets really mangled by proponents and opponents alike. Opponents particularly seize on the claim: “New Urbanism is all about higher density!” “It’s all about one way of doing things!” It’s not. Smart growth is about choices. It’s about appropriate choices. There’s a place in the polycentric fabric of Southern California for a variety of places – for towns, for regional centers, and for the metropolitan center of Los Angeles. And Pasadena knows its place. It is to be the Paris of the West San Gabriel Valley.

…Here’s the problem: We keep trying to do smart growth projects in a “dumb growth” landscape. And we wonder why they don’t work. It’s like trying to run Microsoft Word on an Apple computer. We get all these error messages, and it’s really frustrating. And yet, we keep trying to do smart growth projects. Instead, we have to establish a new operating system…New Urbanism. It’s an integrated approach to landscape. It’s made up, not of projects, but of streets and corridors and neighborhoods and districts. It’s a comprehensive alternative to the suburban sprawl model. It works. But you can’t just take pieces of it and make it work. You have to replace the auto-oriented suburban model we have now with a new operating system.

…What are the key elements of smart growth in Ventura? The battle is over when it comes to deciding whether we’re going to pave over the farmlands, pave over the hillsides, or pave over the greenbelts. The voters have decided: we’re not going to do it. That means, we either grow smart or we don’t grow at all. It’s that simple. And “where” we’re going to grow smart is on our Westside and in Midtown and Downtown. The Westside is an older urban area that cries out for revitalization. Midtown has a strong urban grid of stable neighborhoods, but with really ugly strip corridors. Downtown has come back strongly in recent years. Everyone agrees these are the right places to grow.

There is beginning to be consensus that says we’ve got these corridors, these long strip streets that have an old Burger King, and a used car lot, and a vacant lot, and a little tiny office building, and a strip of one-story retail stores. That all needs to be replaced with handsome boulevard housing. There’s a crying need for workforce housing. That will be tough at first, because there are neighbors to those corridors, and they will think that it’s more dumb growth. But if we show it can be done right and we do it right a few times, it will actually spread very rapidly.

In Ventura, an essential element of smart growth is “green” building. It’s not enough to just do growth in the right place, but to do growth that is environmentally sustainable. That’s particularly true in existing suburban areas. The real battleground at the moment is traditional neighborhood design. Again, as in Pasadena, it’s critically important to respect the history of what’s already there. We learned how to build cities for 4000 years of human history, and then in 1945 we forgot, and we went through 50 years of amnesia, and listening to false prophets. We have got to relearn some of the basic ways in which cities were built. That does not mean that there’s no place for modern architecture, or for new design. But it simply means that human beings still need doors, they still like windows, they still walk.

…A critical piece of New Urbanism is that there’s no such thing as “one size fits all.” You don’t want to put a skyscraper next to low-density residential. You don’t want to put low-density residential in the middle of a downtown. There’s a place for everything, and everything in its place. And that has all kinds of beneficent outcomes… Again, you can’t just do projects that are called “smart growth” where you paint a bike lane and proclaim: “You have the opportunity to ride a bike.” You have to make neighborhoods and cities bike-friendly again, and people-friendly again, and transit-friendly again.

For those of us who advocate smart growth, the most important problem is that everything we believe in is illegal in 50 states. I want to make this clear: It’s illegal to do smart growth. It’s illegal in every city in California except Azusa, which last year unanimously passed a smart growth General Plan. All this stuff has to be jammed through by exception, by variance, by creativity, by pounding on developers, by incredibly brilliant and tenacious developers who try to move things through. It’s illegal. And the only way to fix that is to repeal the laws that make it illegal.

I know I sometimes sound like sort of a desperate guy in the 12th hour of a filibuster. “You’re talking about repealing zoning? What planet are you from?” I’m from the planet Earth. And for the last 50 years we’ve been taken over by aliens: people who don’t understand how to build for people. The idea that instead of walking a block to get a loaf of bread, you should have to drive three miles to get a loaf of bread is a fundamentally alien idea. We have to change the codes. We have to abolish the zoning strictures that make it illegal to put natural human activities in close proximity.

You know, we have this weird new phrase, “mixed use.” It’s like “horseless carriage.” Remember when cars first got started, nobody had a word for cars, so they called them “horseless carriages.” Well, it’s the same with “mixed-use development.” Do any of you live in a house or an apartment? Those would be called “mixed-room development.” But in the world of zoning, the bathroom would be six blocks away. The bedroom would be on the other side of the freeway, because you wouldn’t want the bedroom close to the kitchen, because they might rub off on each other. And you wouldn’t want to have high-income bedrooms next to low-income bedrooms. So the kids would have to sleep somewhere else, because they don’t make as much money as you do.

The phrase “mixed use” is an exotic, weird thing – yet that’s the way human beings have lived since we started building cities. “Mixed use” is redundant. “Segregated use” is the problem. But that’s what is legal, what’s required, in 50 states. Instead of legalizing mixed use, we need to abolish the zoning codes that make mixed use the exception. It should be the rule.

Now, there are a number of developers here. And my message is very simple: it is the responsibility of the local community to set quality rules. We need to figure out what we want, and offer developers a clear code on what that looks like. There ought to be one door to City Hall, and there ought to be a sign next to the door: “This is what is allowed.” If you look at our code and you want to build it, then by all means, come on in and we’ll give you a permit. It shouldn’t take years. It should take six months. If you want to build quality, you should get a permit promptly. If you aren’t interested in quality, you should have to wait forever. You should never get a permit. Even if you lobby or go to lunch with people or make campaign contributions or schmooze with neighbors, you will never get a cruddy project through, because cruddy projects should be against the law.

…2500 years ago, the original people who invented democracy and built pretty cool cities understood that making great places is everybody’s job. It’s not a planner’s job or a politician’s job or an administrator’s job or an architect’s job. It’s a citizen’s job to build great places. It’s everybody’s job. And when you became a citizen of Athens, you had to swear that you were going to leave the place better and more beautiful than you found it. I think that’s the basis of democracy. I think that’s the basis of building cool cities. And I think that’s the basis of saving China from building 8 billion parking spaces.

 

The High Costs of Sprawl

Sacramento Business Journal – Nov. 14, 2005

 

Study: Sprawl costs billions; Sacramento area pays high price Residents of the area centered on Sacramento will pay $57,093 per person by 2025 to cover the additional costs caused by sprawling development, second only to Las Vegas among U.S. economic centers that face the sprawl problem, a new book asserts.

The Sacramento “economic area,” made up of the traditional metro area plus neighboring rural counties, is No. 14 in the U.S. when ranked by sprawl costs, the authors say. The markets facing the highest costs are Los Angeles, Washington/Baltimore and the San Francisco Bay area, with costs associated with sprawl estimated at $535 billion, $384 billion and $378 billion respectively for the period from 2000 through 2025.

But while the total cost for Sacramento is $129.8 billion over that same span, the cost per person is much higher. Only Las Vegas — No. 15 in overall sprawl costs at $109.2 billion — had a higher per-capita cost, at $72,697 per person.

The authors of “Sprawl Costs: Economic Impacts of Unchecked Development” tapped the results of 10 years of research to conclude that shifting to more compact forms of development could save billions of dollars over time.

“Sprawl has direct and quantifiable costs to our economy and in our individual lives,” said Robert Burchell, co-author of the book and co-director of the Center for Urban Policy Research at Rutgers University.

“We are all paying a staggering price for sprawling development in this country, and that price will only go up as gas prices increase,” Burchell said. “Sprawling communities need longer public roads, increase the cost of new water and sewer hookups by 20 percent to 40 percent, impose higher costs on police and fire departments and schools, and more. These costs are passed on to businesses and residents through higher taxes and fees and sometimes through fewer public services. And in most cases, sprawling developments do not generate enough property taxes to cover these added costs.”

The additional costs amount to some $84 million a day nationwide, the authors concluded.

But shifting 25 percent of the anticipated low-density growth to more compact forms would save billions in the years ahead, the book said. Such a shift in the Sacramento area would translate to savings of $8.2 billion, or more than $3,600 per person, by the study’s calculation.

Planners in this region have been working to encourage more compact and transit-oriented development through a variety of means, including the Blueprint Project coordinated by the Sacramento Area Council of Governments .

Along with Burchell, the authors are Anthony Downs, senior fellow at the Brookings Institution; Barbara McCann, a transportation and land use policy writer; and Sahan Mukherji, research associate at the Rutgers center.

 

In Praise of Traffic Calming

By Dom Nozzi, AICP

For 50 years, transportation planners have treated streets as little more than conduits for motor vehicles, and see little need for roads other than to maximize motorist driving speeds. Sadly, in all except our remote subdivisions, the quality of life in cities designed for cars has become miserable. No wonder that so many flee the city for the relative safety, peacefulness, and pastoral nature of outlying areas.

According to Cynthia Hoyle, the U.S. has been so successful in providing for fast, unobstructed travel by car that it has seriously undermined the use of transit, walking, and bicycling.

Streets designed primarily with driving speed in mind deter people from walking and bicycling. They’re difficult and unattractive places to walk or bicycle to begin with, and the heavier, faster traffic they generate makes them downright hostile. Pedestrian street crossings are challenging and infrequent, sidewalks are anything but continuous, and anyone who ventures out on a bicycle is soon reminded by an impatient honking motorist that she’s in the way and doesn’t belong there. “Danger” and “road conditions” or “lack of facilities” are reasons more frequently given in surveys for not bicycling.

How big is the problem for Floridians? One example is the fact that 37 percent of Floridians cannot legally drive-not to mention those who cannot afford to own a car.

The proposed “design speed” for a road affects its dimensions more than anything else. It is the highest speed at which a motorist can drive safely. Not surprisingly, the bible of traffic engineers—”The Green Book”—calls for the design speed, except on local streets, to be as high as practicable.

A wide pavement exerts a strong influence over a motorist. First, it puts someone in a car at a greater distance from objects on either side. Looking at objects that are farther away creates a feeling that a vehicle is moving more slowly and prompts a motorist to compensate by speeding up. Second, by making the motorist survey a broad field in front of his vehicle, a wide pavement provides an assurance that he is in command of that field, which in turn induces him to increase his speed. In addition, when a wide pavement means more lanes, it leaves fewer vehicles in each lane and increases the distance between each vehicle, providing yet another inducement to go faster. Thus an urban arterial with three 11- or 12-foot travel lanes, or a broad two-lane residential street, can have a virtually irresistible effect. Even motorists who are not inclined to drive fast creep up to highway speeds. Others seize the opportunity to floor it.

Cutting down trees, removing other vegetation, taking property by eminent domain, and lowering hills create what traffic engineers assume is the necessary “stopping sight distance.” And the design speed of a road is the primary factor determining the stopping sight distance.

When a traffic engineer states the newly designed road will “improve safety,” beware. While it usually means fewer fender benders, it generally leads to more serious accidents and more accidents involving pedestrians. Making a street “safer” usually tends to increase motor vehicle speeds, which makes the streets less safe for pedestrians or bicyclists. Sixteen percent of all people killed in motor vehicle accidents are pedestrians and bicyclists, which is way out of proportion to the number of pedestrians and bicyclists on the streets. Thirty-nine percent of all children killed in motor vehicle accidents are killed while walking or riding a bicycle. When we hear traffic engineers tell us that the road “improvement” will improve safety, we need to ask them to precisely define what the safety problem is.

Alcohol, vehicle speed, weather, and animals are more important factors in accidents than road design.

Motorists driving at 25 mph or faster have difficulty perceiving that a pedestrian is ready to cross a street, deciding to slow down, and actually doing so. The normal driver usually decides to speed up, assuming that another car will stop.

Many homeowners have essentially written off their front yards as a place to be, largely because of the speed and volume of traffic. It is time that we start designing our communities for people instead of cars. And one of the emerging, exciting ways to do that is through use of “traffic calming.”

Traffic calming involves making design changes to a street or parking lot to slow down and “discipline” autos, and make streets mixed-use rather than single (auto)-use. Strategies include traffic circles (photo above), roundabouts (photo below), on-street parking, narrow travel lanes, reduction in travel lanes, woonerfs, traffic diverters sidewalk bulb-outs, speed humps, smaller turning radii at intersections (15 feet), and elevated/textured/brick crosswalks that serve as a speed hump.

Portland, Oregon has a “skinny streets” program for new residential areas. It allows residential streets to be 20 feet wide with parking on one side, or 26 feet with parking on both sides. The city notes that such streets maintain neighborhood character, reduce construction costs, save vegetation, reduce stormwater runoff, improve traffic safety, and make it possible to use scarce land for purposes other than motor vehicle use. The Portland Fire Department finds that skinny streets provide adequate access for emergency vehicles. It has been noted that it would be more economical to purchase fire trucks that fit local streets than to build all streets to meet the needs of the largest size trucks. Berkeley studies show that traffic control devices had little or no effect on police emergency response time, and Palo Alto found that bicycle boulevard barriers had not impaired police and fire emergency response.

Motorists are more likely to collide with pedestrians at higher speeds. At 60 miles per hour, the field of vision of the motorist is two-thirds less than at 30 miles per hour. In addition, the probability of a pedestrian being killed is only 3.5 percent when a vehicle is traveling at 15 miles per hour, but jumps to 37 percent at 31 miles per hour and 83 percent at 44 miles per hour.

Roadway geometry in safety-sensitive areas, such as schools, should keep auto speeds within 15 to 20 miles per hour. Planting vegetation close to the street will reduce the “optical width” of a street, which makes it seem narrower than it is and help to slow down motorists.

A German study found that traffic calming reduces vehicle idling time by 15 percent, gear changing by 12 percent, brake use by 14 percent, and gasoline use by 12 percent. This is in part because the greater is speed of vehicles in built-up areas, the higher is the incidence of acceleration, deceleration, and braking. Similarly, a study in Portland, Oregon found that a pedestrian-friendly environment can reduce vehicle miles traveled by 10 percent. Other studies show up to a 114-percent increase in non-motorized travel on traffic-calmed streets.

Another German study found that calmed streets experienced a 60 percent reduction in injuries, a 43 to 53 percent reduction in fatalities, and a 10 to 50 percent reduction in air pollution (Nitrogen oxide emissions, for example, begin to increase with speeds at about 15-20 mph, and then increase sharply with speed at about 48 mph.) These substantial benefits, in addition, were achieved by increasing motorist trip time by an average of only 33 seconds. Motorists who found the 18 mile-per-hour speed limit acceptable grew from 27 percent before the streets were calmed to 67 percent after the program began. Receptive residents along the streets grew from 30 percent before to 75 percent after.

Portland finds that traffic circles are most effective when constructed in a series. They are sometimes also located in the middle of the block. Circles reduce motor vehicle speeds and result in a big reduction in the number of accidents. Circles reduce crashes by 50 to 90 percent when compared to two-way and four-way stop signs and traffic signals by reducing the number of conflict points. Seattle likes circles so much that they build about 30 circles each year.

The Institute of Traffic Engineers (ITE) have stated that speed humps are effective in reducing vehicle speeds without increasing accident rates (some studies have found a reduction in accident rate). Humps cause motorists to experience little or no discomfort at speeds up to 25 mph, and need to be spaced close enough to each other so that motorists do not speed between them. The ITE has found that despite concerns about liability, vehicle damage and emergency vehicle impacts, these problems have not occurred or have been found to be insignificant when considering the positive impacts of humps.

And despite the conventional wisdom, stop signs do not affect overall traffic speeds or control speeding. Posting appropriate speed limits and enforcing them is not sufficient to achieve needed reductions in motorist speeds. Modest physical reconfiguration of streets are the only reliable and cost-effective way to slow and control traffic.

Calming also helps reduce neighborhood noise pollution. From a distance of 48 feet, a car traveling at 56 miles per hour makes ten times more noise than a car traveling at 31 miles per hour. Reducing average speed from 25 miles per hour to 12 miles per hour reduces noise levels by 14 decibels (ten times quieter). At higher speeds, every 12 to 15 miles per hour in speed increases results in a 4 to 5 decibel noise increase.

The City of Oakland recently budgeted $1 million to install traffic calming measures throughout the city in response to citizen petitions for safer streets. The City has already installed speed humps and is pursuing road narrowing and barriers to through traffic. A similar strategy in Menlo Park has reduced through traffic by 66 percent, has reduced top speeds by 40 percent, and has reduced average speed by 20 percent.

It is important to learn from our past in designing street intersections. For example, in the past, we designed corners with a small “radius.” A corner with a radius of 15 feet or less is usually appropriate to require turning vehicles to slow down, and also shortens the distance that a pedestrian must walk to get across the street.

A maximum driving speed of 19-25 mph is necessary to ensure safety, create an environment people find conducive to walking and shopping, and minimize noise. Fred Kent, a nationally known urban designer, says that in all the surveys he has done around shopping districts, the biggest problems are not security issues. They are traffic issues-the speed of vehicles, the noise of vehicles, the congestion. You realize that if you create less vehicle flow and slower vehicles, you create more of a sense of community and you increase the perception of safety and security.

Here are some of the benefits that a German city found by using traffic calming:

50 percent increase in bicycle use.

57 percent reduction in fatal accidents.

45 percent reduction in severe accidents.

40 percent reduction in slight injuries.

43 percent reduction in pedestrian accidents.

16 percent reduction in cyclist accidents.

16 percent reduction in traffic accident costs.

66 percent reduction in child accidents.

The Federal Highway Administration (FHA) has stated that traffic calming appears to be one of the more cost-effective ways to promote pedestrian and bicycle use in urban and suburban areas, where walking and bicycling are often hazardous and uncomfortable. By improving the quality of urban neighborhoods, traffic controls can help reverse the flight of the middle class away from the city. And as for children, Stina Sandels, a world authority on children and road accidents says that the best road safety education cannot adapt a child to modern traffic, so traffic must be adapted to the child.

The FHA notes that the importance of reducing traffic speed cannot be overemphasized. While the overall goals of slowing traffic may include environmental improvements, better conditions for bicyclists and pedestrians, accident reductions, and more space for children to play-the reduction in vehicle speeds is crucial to each.

The primary question has become whether or not the city, which was formerly built on the human scale, and in which the street existed primarily as a means of contact, is to be replaced by a sprawled megalopolis where the dimensions of the street and city are on a scale required for its primary use by motorized transportation, and whether we will let our quality of life and sustainability remain terrible-all in the name of making cars happy.

References:

Traffic Calming by Cynthia Hoyle

Traffic Calming by CART (David Engwicht)

Sustainable Community Transportation by Todd Litman

Taming the Automobile by Richard Untermann

Take Back Your Streets by the Conservation Law Foundation

The Merits of New Urbanism

By Dom Nozzi, AICP

The standards and principles of new urbanism are designed to make areas more livable, more vibrant, and more people-oriented, and to build community pride in the city and the work of its developers.

The people-oriented, traditional areas of the city share a number of desirable characteristics that provide us with many benefits. We should strive to preserve, celebrate, encourage and emulate how these areas are designed because of such benefits. For example, a traditionally designed city provides the following benefits:

Gives people without access to a car, such as children, the elderly, and the disabled, more safety and independence in their world.

Enhances urban livability, which reduces the desire to flee to the suburbs, which, in turn, reduces the pressure for costly sprawl and strip commercial development.

Substantially reduces government and household costs — especially because of the enormous savings in the building and maintaining of road infrastructure, and the purchase and maintenance of cars.

Reduces the need for travel.

Helps retain historic structures instead of replacing them with parking or large suburban retail “boxes””

Features streets designed to slow traffic. It increases travel choices and reduces the length and number of vehicle trips.

Makes neighborhoods more memorable and dignified.

Contains structures built for permanence, instead of structures designed, as too many contemporary structures are, for a short-term “throw-away” life.

Integrates income groups by mixing housing types and providing a public realm available to all incomes.

Makes walking feel more enjoyable.

Is not characterized as much by strip commercial visual blight.

Increases citizen access to culture.

Creates a good environment for smaller, locally-owned businesses to become established and to operate in.

Puts “eyes on the street” and promotes “citizen surveillance” of public places where citizens watch over their collective security, crime is reduced, as are public law enforcement costs.

Stabilizes, reinforces the identity of, and improves the value of nearby older neighborhoods.

Preserves and promotes community character.

Promotes neighborhood and community self-sufficiency and, therefore, sustainabilty.

Reduces per capita gasoline consumption and air pollution.

Coupled with regulations that are designed to promote and preserve its features, restores the traditional citizen hope and expectation for a better future with each new development in the city, and, in so doing, reduces the extreme polarization between developers and neighborhoods.

Provides affordable housing options.

Creates a sense of place, a sense of community, a sense of belonging and restores civic pride and place-based loyalty.

Strikes a balance between the needs of the car and the needs of the pedestrian. It creates a pedestrian ambiance and interesting pedestrian features, and makes the pedestrian feel safe, convenienced, and comfortable.

Creates a good environment for smaller, locally-owned businesses to become established and to operate in.

Increases transit viability, primarily through density, access, traffic calming, community-serving facilities, compactness, mixed use and pedestrian amenities.

Currently, developers are often reviled and their developments feared. This is manifested in the contemporary epidemic of NIMBYs (not in my backyard), NIMTOOs (not in my term of office), BANANAs (build absolutely nothing anywhere near anything), and NOPEs (not on planet earth). Largely, these attitudes have emerged because since WWII, developers and cities have sought to make cars instead of people happy.

Typically, American suburbs are characterized by this design. Suburban design features:

Large setbacks that are inconvenient for pedestrians and fail to define a comfortable public realm

Large parking lots in front of buildings

Large street blocks with no cross access or connecting streets

Buildings with their backs or sides turned toward the street. Instead of an entrance or windows, the pedestrian is confronted with blank walls, air compressors, dumpsters, and long walks to the building

Pedestrian-hostile features that are designed to promote car use, such as drive-throughs, single-use zoning, segregation of land uses, and “armoring” with fences and walls

To make Gainesville a safer, more livable place, and to increase citizen pride in its developments, the new urbanist standards are designed to primarily promote the health, safety, and welfare of pedestrians, while still accommodating the needs of the car. More specifically, the design is intended to make the pedestrian feel:

Safe and secure

Convenienced

Pleasant and comfortable

With enhanced safety, livability, civic pride, and visual appeal in these older parts of the city, the city will establish an important engine in job recruitment and a strengthened tax base. A downtown that adheres to these standards will be a city that provides an important incubator for new, entrepreneurial, locally-owned small businesses and entry-level job opportunities. A healthy downtown also protects the property values of surrounding residential areas.

Some Principles of New Urbanism

Build-To Line

Overly large setbacks are inconvenient and unpleasant for pedestrians. They are inconvenient because they can significantly increase walking distances from the public sidewalk. They are unpleasant because they prevent the pedestrian on the public sidewalk from enjoying the building details and the activity within the building. In addition, they prevent the building from contributing to an intimate, pleasant, comfortable street wall, which harms the sense of place and makes the pedestrian feel as if she or he is in “no man’s land.” Buildings pulled up to the street sidewalk have more of a human scale. The intent of a build-to line is to pull the building facade up to the street to abut the streetside sidewalk. By doing so, building facades along a block face will be aligned to form a street wall that frames the public realm, while retaining sufficient width for people to walk, and sufficient space to provide a formal landscape created by the shade of street trees. The street wall shapes the public realm to provide a sense of comfort and security for the public space.

Building Height of At Least Two Stories

“Low-slung” one-story buildings are more appropriate in low-density residential areas designed for motor vehicle travel. They reduce the density and intensity needed to make transit, walking, and bicycling viable, and typically are too low in profile to form a desirable, intimate, comfortable public realm with facing buildings across the street. They also reduce the opportunity to create mixed-use buildings containing, typically, both commercial and residential uses. Low-rise multi-story buildings two to five stories in height are an important component of the compact, walkable city. The building profile forms the desired street wall and the additional stories allow the establishment of the number of residents needed for a viable urban neighborhood.

Parking Located at the Rear or Side of Building Instead of in Front

Parking areas located in front of buildings are inconvenient and unpleasant for pedestrians. They are inconvenient because they significantly increase walking distances from the public sidewalk. They are unpleasant because they often make for hot expanses of areas to walk in, prevent the pedestrian on the public sidewalk from enjoying the building details and the activity within the building, and increase safety problems since pedestrians must dodge cars in the parking area. In addition, they prevent the building from contributing to an intimate, pleasant, comfortable street wall, which harms the sense of place and makes the pedestrian feel as if she or he is in “no man’s land.” Buildings pulled up to the street without intervening motor vehicle parking have more of a human scale.

Hidden Trash and Recycling Receptacles and Loading Docks

Trash and recycling receptacles and loading docks typically provide an unsightly appearance and an odor problem for pedestrians. In addition, improperly located and improperly screened receptacles and docks can cause noise problems for nearby land uses when the receptacles and packages are being loaded or unloaded. Therefore, they should be located as far from public sidewalks as possible and screened from view.

Sidewalks Sufficiently Wide and Aligned for Convenience

Sidewalks, when properly dimensioned and maintained, can provide the pedestrian with a pleasant, safe, and convenient place to walk. Sidewalks that are too narrow are inconvenient, especially in areas with large volumes of pedestrians, pedestrians walking side-by-side (which requires a minimum sidewalk width of five feet unobstructed), and people using wheelchairs. In addition, sidewalks that must wrap around large block faces are a serious impediment to pedestrian convenience.

Building Oriented to the Street, Instead of Turning Its Back to It

A successful commercial establishment is designed to provide convenience for customers by minimizing walking distances from public sidewalks and nearby buildings. Rear or side entrances, or entrances oriented toward a parking lot, make travel highly inconvenient for pedestrians and transit users. Such a design also cuts the building off from street life. In addition, a building with its main entrance directed away from the primary sidewalk and street “turns its back” to the public realm, reduces urban vibrancy, and is harmful to promoting street life. When a building is located at an intersection, the most convenient entrance is usually abutting the public sidewalks at the corner of the intersection. Often, the most convenient sidewalk is formally aligned diagonally and aligned straight to minimize walking distance.

Facade Treatment Creates Interest for Pedestrians

All building shall be designed to provide interest for pedestrians. Long expanses of blank walls tend to be boring and unattractive for the pedestrian. In addition, windows attract pedestrians, which act as a security system for the business. Buildings without such relief and interest tend to create a “massive scale”, and makes the public realm impersonal. Such an appearance is inconsistent with the “human-scaled” and pedestrian-oriented character of the a traditional area of a city, and inconsistent with a city intent to restore such character to the traditional city area.

Hidden Outdoor Mechanical Equipment

Outdoor mechanical equipment, such as heating or AC units, when improperly located on a site or improperly screened, can contribute to noise problems and create visual blight.

Formal Landscaping

In the traditional, pedestrian-oriented areas of a city, landscaping should be used both to soften the “hardness” of the urban area for the pedestrian, and make the pedestrian feel more comfortable by providing cooling, reducing glare and helping to form public spaces, “outdoor rooms,” and street corridor edges. Such formality of landscaping adds dignity to the traditional area of a city, instead of a chaotic one, thereby inspiring a sense of civic pride.

Properly Scaled Lighting

Lighting can often detract from the intimate, pleasant, romantic character a city seeks to promote in the traditional, pedestrian-oriented areas of a city. But lighting designed for cars tends to be not human-scaled. Lights on tall fixtures cause light pollution by casting light into areas not needed by pedestrians. In addition, the lights present a poor, bleached out atmosphere as the pedestrian views an area from afar, and hides the nighttime sky completely. A new urbanist, pedestrian-oriented street lighting design features shorter and more numerous light fixtures and structures.

Prohibited Auto-Oriented Uses

Certain uses are oriented toward or designed to attract motor vehicles, and therefore contribute to danger, visual blight, inconvenience, and lack of human scale for pedestrians. Therefore, such uses are not compatible with the a people-friendly downtown area.

Alleys

Alleys allow the developer to place garages, driveways, waste receptacles, and overhead utilities in a less conspicuous location away from the public street and therefore less likely to detract from the pedestrian ambiance of the neighborhood. Alleys also provide an additional location for emergency vehicles to gain access to a building, and a relatively safe place for children to play.

Front Porches

When they are set back a modest (“conversational”) distance from the sidewalk, porches allow persons to sit on their porch and interact and socialize with their neighbors. They therefore add safety (by putting “eyes on the street”) and friendliness to the street. As a result, porches contribute to an enjoyable walk by pedestrians in the neighborhood.

Narrow Streets

Narrow streets force cars and trucks to travel slowly through the neighborhood, which significantly contributes to neighborhood safety, low noise levels, low traffic volumes and, therefore neighborhood livability.

Mixed Housing Types

Mixed housing types provide the neighborhood with a mixed income environment, since the mixed types provide a range of housing affordability. Mixed housing types enable lower income workers to live within walking distance of their jobs, instead of creating traffic problems by being forced to commute by car to their jobs.

Transit Links

When a neighborhood contains — or is near — safe, pleasant, and convenient bus stops, a larger number of trips are made by bus, which reduces excessive neighborhood trips to and from the neighborhood by car. This provides more transportation choice, enhances neighborliness, and reduces household transportation costs (every car a household can shed saves the household the equivalent of the monthly home mortgage payment on a $51,000 house, at 10 percent interest).

On-Street Parking

Buffers pedestrians from vehicle travel. Narrows the street in order to slow traffic to a safer, more livable speed. Provides convenient parking locations for nearby businesses. Allows businesses and residences to reduce the amount of off-street, on-site parking, which reduces the “heat island” effect and enhances urban vibrancy by improving the public realm.

Mixed Use

Reduces trip distances to the point where walking, bicycling, and bus trips are much more feasible for a number of different types of trips. Adds to neighborhood and urban vibrancy by increasing the number of places people can meet — such as a pub, on the way to work or a civic event, a grocery store, a fitness center, etc. Provides children with more of an awareness of community land uses other than parks, residences, and schools.

Resessed Garages

Enhances the neighborhood walking environment for the pedestrian. Houses appear people-oriented and interesting to walk along, instead of sending a strong message that “a car lives here.”

Narrow, Smaller Lots

Provides a more compact, walkable arrangement of houses. Provides a more pleasing alignment of houses along the streetside sidewalk, which enhances civic pride in the neighborhood and makes the residential street seem more “cozy.” Blocks are reduced in size, which makes the neighborhood more walkable. Narrower lots increase the frequency of front doors along the street, which greatly enhances the vibrancy of the street. Houses appear to be associated in a neighborly way, instead of isolated and cocooned from the neighborhood. Smaller lots also make home ownership in such a subdivision more affordable. In addition, the higher, yet livable, density that smaller lots provide makes transit more viable.

Connected Streets

Makes walking, bicycling, and using the bus more feasible by significantly reducing trip distances and increasing the number of safe and pleasant routes for such travellers. Provides motorists and emergency service vehicles with more “real time” route choices. A route that is impeded or blocked can be avoided in favor of a clear route, which is not possible on a cul-de-sac. In combination with the fact that connected streets distribute vehicle trips more evenly, real time route choices on connected streets reduce congestion on collector or arterial roads. As a result of this distribution, there is little or no need for neighborhood-hostile collectors or arterials, which, because of the volume and speed of vehicle trips they carry, are unpleasant for residences to locate along.

Terminated Vistas

A concept in which a prominent building is placed at the “visual termination” of a street. Provides dignity and prominence to important civic buildings, such as post offices, libraries, city halls, churches, convention centers and performing arts centers. Sends the message that the building is an important place for the community. In addition, terminated vistas make walking more pleasant by giving the pedestrian a “goal” to walk toward. The walk therefore does not seem endless. It also provides an impressive view to strive to reach. Such vistas also make trips more memorable by helping to orient a person as to their location in the community.

Livable, higher densities

The conventional way in which we address land use conflicts is to put distance between conflicting activities, and minimize the number of dwelling units per acre. But this does little to encourage land users to reduce the damage they do to the environment. Also, by segregating uses, we increase the amount people have to travel by car, which itself reduces the quality of the urban and natural environment.

By contrast, the more compact, higher density “new urbanist” development reduces trip length; and makes bicycling, transit, and walking more viable. For these reasons, compact development generates about half as much vehicle travel as does sprawl development, making such a land use strategy one of the most effective in reducing auto dependence.

Minimum densities necessary for a viable bus system are approximately eight dwelling units per acre. Newman and Kenworthy indicate that only when densities exceed 7,000 to 8,000 persons per square mile (Gainesville’s density is currently 2,000 per square mile) do mixed land uses and shorter travel distances become predominant enough to significantly reduce auto dependence. These researchers note that a dramatic reduction in per capita gasoline consumption occurs when population density reaches 12 to 16 persons per acre. “Low density land use ensures almost total dependence on automobiles, enormous travel distances, no effective public transit, and little possibility of walking or [bi]cycling. Below five or six people per acre, a city almost ceases to exist, and requires enormous transportation energy to hold the scattered parts together.”

A recent study found that distance is the most widely cited reason for not walking more often, thereby showing the importance of compact development as a strategy to encourage walking. People living in high-density areas are much more likely to walk than those living in low-density suburbs, even when suburban trips are less than one mile (note that higher population densities seem to be more strongly correlated with higher walking rates than does a compact land use pattern). There also seems to be a correlation between the shorter commute distances associated with compact cities and higher bicycling rates. Compact, mixed-use development has been cited as much more likely than improved bicycle facilities, congestion fees, or fuel price increases to recruit motorists to bicycling.

Residential development that averages 14 dwelling units per acre requires half as much road mileage to serve vehicle trips than development at 3.5 dwelling units per acre. Another study found that for each doubling of residential density, vehicle miles traveled is reduced 30 percent. Thus, if the population of an area doubled due to infill development, vehicle miles traveled would probably increase by only 40 to 60 percent, rather than the 100 percent it would increase if the population increase occurred in dispersed suburbs.

A recent study has confirmed that the shift from car trips to transit and walking does not occur until certain job and housing densities are achieved. For work trips, the thresholds are 50 to 75 employees per gross acre, or 12 dwellings per net acre. For shopping trips, it is 75 employees per gross acre and 20 dwellings per acre.

One way to increase development densities is to remove land development policies that reduce development densities, such as minimum lot size zoning and minimum parking requirements.

Public service vehicles scaled small enough so that they do not dictate unsafe, wide streets

New urbanism encourages the use of public service and emergency vehicles (such as fire trucks) that are scaled to be compatible with neighborhoods. Increasingly, such vehicles are quite large, and their size often dictates rather wide streets and unsafe turning radii. Yet studies show that the dangers of such street design typically far outweigh the safety benefits that larger streets and turns will provide for emergency vehicles. In general, this is because the probability of traffic injury or death due to over-sized streets is much higher than the chance that injury or death would be averted because the emergency vehicle can shave a few seconds off of a trip. Therefore, smaller service vehicles can help a City keep average neighborhood vehicle speeds lower, make the streets safer and less noisy, make the neighborhood more walkable and, in general, more livable and sociable.

Streets and sidewalks straight, not curvilinear

Streets are more memorable and less disorienting when they are straight. They are more dignified, and can be terminated with a prominent vista. It is important that sidewalks be straight, since pedestrians have a strong desire to walk the distance that provides the minimum trip length. Curving sidewalks promote the creation of “cow paths,” as pedestrians take short cuts along their route. In general, curvilinear sidewalks are only appropriate when needed to avoid a large tree or other important physical feature, or in an area in which most pedestrians are walking strictly for optional recreation or exercise. This is generally not the case in an urban area, where almost all trips are utilitarian. Mostly, curving sidewalks are intended to improve the view of motorists driving along a road, and provide no important benefits for the pedestrian.

One-quarter mile walking distance

It is generally recognized that the convenient walking distance ranges up to one-quarter mile, or roughly a five- to ten minute walk. It is therefore important that for a neighborhood to be walkable, most homes should be within one-quarter mile of public parks, schools, civic buildings, retail, office, and various forms of culture. The one-quarter mile design yardstick also enhances the viability of transit.

Short, walkable block faces

In general, a neighborhood or commercial block face length should not exceed approximately 500 feet. Longer blocks tend to create inconvenient walking distances. When long blocks must be created, they should be shorted with cross-access walkways.

Ground-floor retail. Offices and residential above.

This form of mixed use enhances vibrancy and provides more affordable housing choices. It reduces the need for trips by car, since employees of the retail establishment can live above the shop. It is important that such “vertical mixing” of uses not place residential on the first floor, since it is disruptive for the residence when users of the office or retail must walk through the residence. It is also important that such mixed use include retail on the first floor so that more energy and interest is at the street level – -thereby benefiting pedestrians.

Eyes on the street. Citizen surveillance

Law enforcement agencies increasingly see the merits of citizen policing, in which citizens are able to watch out for their collective security. Such “eyes on the street” are promoted when buildings, windows, entrances and porches are near the street and sidewalk. Citizen surveillance is also promoted when the neighborhood or commercial areas are designed for regular, frequent pedestrian activity. Areas without pedestrian activity are areas where illegal, inappropriate, or unsafe behavior can occur more easily since there is no one to observe the deed and report it or intervene.

Diagonal usually the shortest walking distance

In general, the shortest walking distance is a diagonal route. Frequently, sidewalks are designed with right angle turns, which increases the walking distance and increases the likelihood of “cow path” shortcuts.

Centrally-located schools, parks, squares, civic w/in walking distance of most homes

When schools, parks, squares, and civic buildings are within easy walking distance of most residents, a sense of community and neighborliness is promoted, and vehicle trips are greatly reduced. If children are able to walk to school or a park, such areas can become social and recreational gathering places for students, because they are able to go to the school or return home on their own, as opposed to being required to leave when the bus leaves at the end of the class day.

Parks, squares and civic uses are more frequently used when residents have easy, non-vehicular access to them. When centrally located, they become the focal point of the neighborhood, and maximize the number of residences that are within walking distance.

Square street curbs

Square street curbs provide more safety for pedestrians, and provide a more attractive, urban appearance for the neighborhood.

Modest curb radius

A larger curb turning radius at an intersection or a parking area ingress and egress point allows vehicles to negotiate a turn rapidly, whereas a smaller radius forces a vehicle to slow down. Conventional traffic engineers often prefer a larger radius for vehicle convenience and curb protection, but such a radius makes life more inconvenient and dangerous for pedestrians. A larger radius also significantly increases the distance for crossing the street, which exposes the pedestrian to more danger from moving vehicles.

Note that large garbage trucks or delivery trucks or buses or fire trucks should not dictate the design of neighborhood curb radii. To do so is equivalent to obligating an architect to increase the size of the front door opening so that an overly large TV set can be brought into the house. No, the correct solution is to request that service and emergency vehicles be scaled for neighborhoods…

 

Downtown Parking

By Dom Nozzi, AICP

Suburbanization is the biggest threat to cities in North America. – Paul Bedford, Toronto Planning Director

Automobiles need quantity and pedestrians need quality. – Dan Burden

 

Introduction

Perhaps one of the most common suggestions for “improving” downtowns in America is to recommend that more free parking be created to address what is perceived to be a parking “shortage.” That “lack of parking” is the primary cause of downtown decline.

However, a large number of cities throughout the nation have long exempted new development from needing to provide parking in their downtowns, as can be seen below. This paper describes some of the important reasons why it is common for a city to exempt businesses from downtown parking requirements, despite the near consensus that downtowns “need more parking.”

Agglomeration Economies

A Central Business District (a downtown) is healthy almost exclusively because of “agglomeration economies.” That is, downtowns survive and thrive because of a concentration of government offices, residential density, services, and cultural events in a relatively small space. Indeed, agglomeration economies are the basis for why cities (and their outlying residential areas) form. Concentrating activities, buildings, and services in a small space increases efficiency and maximizes economic health-largely by drawing large numbers of people and minimizing the distance they must travel in order to interact (or spend money). These concentrated downtown entities thrive in part based on the synergistic, spillover benefits that downtown proximity to nearby activities provide. Off-street parking detracts from each of these factors-particularly density and synergy.[1] A crucial side benefit to higher residential densities downtown is that such densities create what economists call the “24-hour downtown”(see the Emerging Trends summaries below). Such downtowns are places that do not close up at 5 pm at the end of the workday. Folks living downtown provide patronage to downtown throughout the day and night because they live there, and they are often looking for goods and services. By being more alive and less deserted throughout the day and night, 24-hour downtowns become safer places because citizens watch out for their collective security as they walk the streets.

Small Business Incubation

Because a healthy downtown has high agglomeration economies and can support some forms of business activity with little or no need to provide parking, healthy downtowns tend to be an effective and important incubator for small, locally owned businesses-a large percentage of which would not be possible without what a downtown delivers. Small businesses are strongly promoted when start-up costs are low and there is a concentration of pedestrian traffic. The higher residential densities found in agglomerated downtowns also provide a stimulus for small businesses, as such densities are essential for creating viable small businesses that depend on walk-in customers and not just auto-based customers. Off-street parking undercut these benefits for small businesses by substantially increasing start-up costs, reducing walk-in traffic, and substantially reducing potential residential densities.

Market-Distorting Subsidy

Free parking is a market-distorting, enormous subsidy inequitably available only to motorists (it is a subsidy not offered to pedestrians, bicyclists or transit users). As Todd Litman [2] points out, minimum parking requirements clearly create economically excessive parking supply. That is, substantially more parking must be offered than would be provided based on market principles of supply and demand.

Lifestyle Choice

To meet the needs of all residents of a community, there is a need to provide for the full range of lifestyle choices, from walkable urban, to suburban, to rural. In cities throughout the nation, the walkable urban lifestyle is rapidly vanishing. Since such a lifestyle has been desired throughout history by all cultures by at least a segment of the community, and will always be desired by a segment of the community into the future, it is essential that such a lifestyle be provided for. Off-street parking significantly detracts from the ability to provide for such a lifestyle.

Crime Magnet

Surface parking tends to attract and promote criminal or juvenile delinquent behavior. Pedestrians tend to feel unsafe walking downtown when there are large, empty spaces, in part because the security of citizen surveillance is compromised by such vacant, unused spaces. A well-known Crime Prevention Through Environmental Design (CPTED) principle states that degraded, deteriorating, blighted, or abandoned places send the message that the place is not being defended or watched over by users or owners, and is therefore seen as a safer place to engage in crime. CPTED also calls for “territoriality.” This strategy starts from the premise that design can create a “sense of ownership” over territory, which can create a “hands off” message for would-be criminals. A notable attribute of parking lots is that they tend to create a “no man’s land” that does not seem to be owned by anyone.

Space

Per person, cars consume an enormous amount of space. If we add up the size of a parking space, and the space needed to maneuver to the space (aisles, shy distance, etc.), a car needs approximately 300 square feet of space [3]. That space must be used efficiently in order for there to be a net benefit for a downtown, where agglomeration economies means that space is very, very dear. While it is true that a Bill Gates or a Donald Trump could take up the equivalent of 30 or 50 parking spaces and still provide a net benefit for a downtown (because they will sometimes spend a lot of money when they are downtown), most of us mere mortals do not provide a net benefit when we compare the amount of downtown space we consume upon arrival to a downtown by car to the amount of money we will probably spend once we get there. Note that suburban strip shopping centers or regional malls are able to overcome this spacing constraint that downtowns face because while it remains true that each motorist consumes a great deal of space when they arrive by car, land is so ample and low in cost in the suburbs that a huge amount of car storage space can be provided with vast asphalt parking lots that dwarf the retail stores. Because the suburban parking lot is so large, because the spaces are free, and because the shopping is convenient to major roads and highways, the suburban shopping area is able to attract a regional consumer-shed of customers. The sheer number of customers is able to overcome the inefficient use of space per customer/motorist. But notice that once a person parks at a shopping mall parking lot and walks inside the mall, there are an enormous number of shops within a compact, human-scaled space that are easy to walk to (the agglomeration economies happen once the person enters the inside of the mall or “superstore”). [4]

“In order to meet modern parking requirements, historic property owners must often demolish adjoining structures to accommodate the parking,” according to Constance Beaumont. [5] “This destroys not only the buildings, but the visual cohesiveness of historic areas. It forces people to rely even more heavily on cars for transportation because it makes the urban environment less hospitable for pedestrians. Over time, the community loses its social cohesiveness along with its identity.”

Business Unfriendly

It is very costly, particularly for small businesses, to provide 300 square feet of land to store a vehicle for each employee and each customer. With typical minimum parking requirements, for example, Donald Shoup [6] estimates that the average restaurant must purchase and maintain approximately three times as much land for the parking as for the land needed for the restaurant itself. “Although some suggest limiting parking supply in CBDs [Central Business Districts, also called downtowns] puts downtown areas at a competitive disadvantage within a region, requiring too much parking can also discourage development by forcing developers to dedicate valuable CBD space to parking.” [7]

Requiring Parking Lowers Development Densities

Because each off-street parking space consumes 300 square feet of land, requiring new developments downtown to provide off-street parking would reduce the potential density of the project substantially, [8] which is counter to the objective of most cities to promote downtown density. “At the requirement of 2.7 spaces per 1,000 gross square feet, the square footage of parking equals the square footage of building area,” according to Richard Willson. [9] “At any greater parking requirement, there is more parking area than building area…If advocates of slow growth proposed density reductions of 30-40 percent, they would raise a vigorous debate. Yet parking requirements indirectly restrain densities without any substantive policy debate…When a jurisdiction adopts high parking requirements, it is enacting a form of growth control…Suburban locations with low-cost land are more desirable, because parking can be provided at a lower cost than in central suburban or urban areas…Reformed parking requirements could be a powerful factor in supporting a community’s goals, whether they concern environmental quality, urban design, transportation systems or economic development.” Indeed, as Shoup has pointed out, “form no longer follows function, fashion, or even finance; instead form follows parking requirements.” [10]

Many who live in or near a downtown are often puzzled that the downtown is not able to harbor successful hardware stores or grocery stores. After all, aren’t people going to be much more willing to patronize a shop that is nearby, instead of driving several miles to a suburban shopping center? Wouldn’t downtown revitalization be so much more likely and attractive if it included such stores?

Unfortunately, one of the lessons we have learned in recent years about Big Box retail “superstores” is that a great many Americans are perfectly willing to drive 10 or 20 miles simply to save 10 cents on a pair of underwear. After all, when roads are high-speed and free, gas is cheap, and there is ample free parking at the destination, distance becomes almost irrelevant to the decision about where to shop.

For these downtown grocers and hardware stores to have a chance, they must rely on very high residential densities within easy walking distance. Since such densities are only found in the largest American cities, these much-adored “corner grocery stores” and “mom and pop hardware stores” are typically not found at all in small- or medium-sized cities.

 

Well, if we don’t have those high residential densities downtown, how can we deliver to downtown the large numbers of people downtown so desperately needs without suffering the negative consequences of the vast per person loss of space that comes when each person arrives by car? An essential solution is to provide quality public transit service. Transit means that a large number of people can come to downtown without the need for parking. Of course, a prerequisite for quality transit is the existence of higher density residential development both in the downtown and in areas surrounding downtown. Therefore, by causing a reduction in residential densities, the over-provision of parking downtown undercuts the ability of a downtown to provide the transit service it needs.

Example Cities

There is a very strong, inverse correlation between the amount of free parking provided in a downtown per capita and the health of the downtown. The less attractive, more crime-prone, more deserted the downtown is, the more it can afford to provide free parking (because there is so little demand for buildings and people to be there). Conversely, the more attractive, safe, healthy and exciting a downtown is, the more costly and scarce the downtown parking becomes (because there is so much demand for buildings and people to be there). Cities such as Detroit, Houston, Buffalo, St. Louis, Dallas, Cleveland and Newark are prime examples of compromised cities with excessive parking. The downtowns of these cities contain a vast amount of surface parking (much of it free). Yet for several decades, they have also been dying, moribund, scary places that few want to visit or live in. By contrast, the most economically and socially healthy, exciting, attractive cities are all known for their scarce, expensive parking-Boston, New York, Chicago, San Francisco, D.C. Indeed, it has been said by at least one urban designer that “anyplace worth its salt has a “parking problem.” Another once said that “the best indicator of a successful city is lack of parking.”

How Do Peer Cities Treat Downtown Parking?

Looking at what “peer cities” do about an issue a community is struggling with is a common strategy. However, such an analysis should be used with an extreme level of caution, particularly when it comes to parking policies. A parking management expert discussed with me the advisability of using peer cities to determine what to do about parking problems, and he noted that this is usually a strategy to “see what everyone else is doing, so we can duplicate their mistakes. This is one of the biggest problems when it comes to planning for parking: a belief that we should simply do what everyone else does, because they must know what they are doing.”

 

Table 1. How Various Cities Treat Downtown Parking (as of 5/05)

City Parking Exempt CCD? Notes

 

Tampa FL Y Parking exempt via parking fund payment.

Raleigh NC Y

Madison WI Y Reductions allowed in all other districts.

East Lansing MI Y On-site parking requires commission action.

Champaign IL Y

Ann Arbor MI Y Unless structures exceed Floor Area Ratio limits.

Orlando FL Partial Some non-residential uses are parking exempt.

Ft Collins CO Mostly Non-residential exempt. Residential not exempt.*

Chapel Hill NC Y Parking exempt via parking fund payment.

Tallahassee FL Y Also has “Urban Pedestrian” zoning districts that are parking exempt.

Athens GA Mostly Residential/hotels not exempt. On-street parking credits are allowed.

Tucson AZ Reduced & Partial “Parking Amenity Reductions” are allowed. Reduced parking requirements. Change of use exempt.

Baton Rouge LA Y However, gambling uses must provide parking.

Austin TX Reduced Min. is 20% of normal. Max. is 60% of normal. Exempt uses less than 6000 sf in existing buildings.

Mount Dora FL Y

Ft Myers FL Y

Eugene OR Y Also exempts “small” sites in their C-1 zone.

Ft Lauderdale FL Y

Corvallis OR Y

Kissimmee FL Y

Charlottesville VA Y

Olympia WA Y

Bellingham WA Y Hotels/motels not exempt.

Stuart FL Y

Flagler Beach FL Y

Iowa City IA Y

Columbus OH Y

Denver CO Y For buildings built before 1974

Sarasota FL Partial Some uses exempt.

West Palm Beach FL Y Payment in lieu of parking.

Palo Alto CA Y

*Downtown residential less common than non-residential.

Example Shopping Centers

Many cities have vast, abundant, never-scarce off-street parking found at large, older, dying shopping centers. This has not saved these centers from a long period of downwardly spiraling retail health and appalling levels of building vacancy.

How Many Parking Spaces are in downtown?

An inventory of all public and private downtown parking spaces might lead to eye-opening surprises. For example, in a recent inventory of a downtown for a city in Florida, it was learned that more than one out of every five acres of Central City District land is consumed by parking.

Astonishingly, despite all the talk about downtown parking “shortages” in this city, the downtown has 84 percent of the total amount of parking found at a regional shopping mall at the western periphery of the urban area.

What Is the Proper Amount of Downtown Parking?

Peter Newman and Jeffrey Kenworthy, internationally acclaimed transportation and livable cities experts, surveyed 32 cities around the world. [11] They sought to compare the amount of lane mileage and parking provided in the downtowns of these cities, and then look for correlations between these factors and both gasoline consumption and the livability of the city.

Based on this analysis, they came up with a rule of thumb for a CBD. The rule of thumb is a parking-to-CBD employment ratio. Their conclusion was that beyond 200 parking spaces per 1,000 jobs, a city becomes noticeably ugly, polluted, auto dependent, energy intensive and deteriorated.

Here are the numbers for well-known American cities (note that the totals are from 1990):

Phoenix = 1,033

Los Angeles = 524

Detroit = 473

D.C. = 264

Chicago = 96

New York = 75

Downtown Parking Less Necessary

Unlike the suburbs, car parking is less necessary downtown because travel by car is less necessary. It is significantly easier to walk, bicycle or use transit downtown primarily due to the proximity that downtown provides between homes, offices, retail, services, cultural activities, and government affairs. [12] This proximity inherently provides a concentration of transit services, since transit is most efficiently provided where such proximity exists. As a result, it is relatively easy to get to and from downtown via transit. Census data consistently shows that per capita walking, bicycling and transit use is higher in a downtown than any other part of the urban area. Because of this, per capita car use and parking is therefore lower in a downtown than any other part of the urban area. Per household car ownership is also lower downtown than elsewhere in the city. [13] The “Park Once” environment that downtown provides due to its proximity benefits means that quite often, when a person arrives in downtown, they are able to park upon arrival and walk to multiple destinations in the downtown area, instead of needing to find a new parking space each time there is a desire to go to another downtown destination, such as an office, a retailer or a restaurant.

What Type of Parking is Preferred?

The highest value, most preferred parking in a downtown is on-street, curb-side parking. Such parking provides rapid, convenient parking for motorists seeking to quickly dash into an office or shop. It also provides substantial benefits for pedestrians, because it forms a protective buffering layer between moving traffic and the sidewalk that protects pedestrians from the noise and danger of cars. Most importantly, on-street parking creates “friction” which slows cars and obligates drivers to travel more safely and attentively. It is well-known that on-street parking is immensely beneficial to retail shops that abut such parking. In general, the second best form of parking is within parking garages. Garages provide longer-term parking than on-street parking, and provide more protection of the car from weather and perhaps vandalism. Garages take up substantially less downtown land than off-street surface parking, and their “verticality” helps define and enclose the public realm-a form of urban design that pedestrians tend to enjoy and feel safe in. This is particularly true when the first floor of the garage is wrapped with retail or office uses that can activate the sidewalk-rather than creating a dull, sterile, unsafe blank wall (or car grill) experience. By far, the least preferable downtown parking is surface parking lots. Surface lots fail to define space. They create ugly, dead zone gaps in the downtown fabric. They leave pedestrians feeling exposed and unsafe. They tend to attract undesirable behavior by students and teenagers. They increase downtown maintenance costs much more than on-street or garage parking. They detract from the human-scaled, unique, walkable ambience so important to downtown. And as is pointed out elsewhere in this report, they do nothing to contribute to the agglomeration economies that are essential for activating the healthy downtown.

How Should Curb-side Parking Meters Be Priced?

Shoup talks about the proper pricing of parking meters in the Fall 2003 issue of Access Magazine:

“The right price for curb parking is the lowest price that keeps a few spaces available to allow convenient access. If no curb spaces are available, reducing their price cannot attract more customers, just as reducing the price of anything else in short supply cannot increase its sales. A below-market price for curb parking simply leads to cruising and congestion. The goal of pricing is to produce a few vacant spaces so that drivers can find places to park near their destinations. Having a few parking spaces vacant is like having inventory in a store, and everyone understands that customers avoid stores that never have what they want in stock. The city should reduce the price of curb parking if there are too many vacancies (the inventory is excessive), and increase it if there are too few (the shelves are bare).”

“Underpricing curb parking cannot increase the number of cars parked at the curb because it cannot increase the number of spaces available. What underpricing can do, however, and what it does do, is create a parking shortage that keeps potential customers away. If it takes only five minutes to drive somewhere else, why spend fifteen cruising for parking? Short-term parkers are less sensitive to the price of parking than to the time it takes to find a vacant space. Therefore, charging enough to create a few curb vacancies can attract customers who would rather pay for parking than not be able to find it. And spending the meter revenue for public improvements can attract even more customers…”

“…Old Pasadena had no parking meters until 1993…Customers had difficulty finding places to park because employees took up the most convenient curb spaces…The city’s staff proposed installing meters to regulate curb parking, but the merchants and property owners opposed the idea. They feared that paid parking would discourage people from coming to the area at all. Customers and tenants, they assumed, would simply go to shopping centers like Plaza Pasadena that offered free parking…To defuse opposition, the city offered to spend all the meter revenue on public investments in Old Pasadena. The merchants and property owners quickly agreed to the proposal because they would directly benefit from it…The…proceeds paid for street furniture, trees, tree grates, and historic lighting fixtures throughout the area. Dilapidated alleys became safe, functional pedestrian spaces with access to shops and restaurants…Dedicating the parking meter revenue to Old Pasadena has thus created a ‘virtuous cycle’ of continuing improvements…Old Pasadena’s sales tax revenues quickly exceeded those of Plaza Pasadena, the nearby shopping mall that had free parking. With great fanfare, Plaza Pasadena was demolished in 2001 to make way for a new development-with storefronts that resemble the ones in Old Pasadena.”

“Would Old Pasadena be better off today with dirty sidewalks, dilapidated alleys, no street trees or historic street lights, and less security, but with free curb parking? Clearly, no. Old Pasadena is now a place where everyone wants to be, rather than merely another place where everyone can park free…”

“…Tellingly, although Westwood Village [a business district in LA] has about the same number of parking spaces as Old Pasadena, merchants typically blame a parking shortage for the Village’s decline. In Old Pasadena, parking is no longer a big issue…curb-space occupancy rate in Old Pasadena was 83 percent…In contrast, Westwood’s curb parking is underpriced and overcrowded…curb-space occupancy rate was 96 percent during peak hours, making it necessary for visitors to search for vacant spots. The city nevertheless reduced meter rates…in response to merchants’ and property owners’ argument that cheaper curb parking would stimulate business…The result is a shortage of curb spaces, and underuse of the off-street ones…Nevertheless, the shortage of curb spaces (which are only 14 percent of the total parking supply) creates the illusion of an overall parking shortage.”

Free Parking is Not Free

As Shoup convincingly points out, free parking is not free, even for those who do not drive. The cost of buying and maintaining it is high, and that cost is ultimately paid by customers (through higher costs for goods and services), by higher taxes (since costly parking discourages creation of new businesses [14]), and by higher unemployment (since costly parking discourages job and business creation or expansion). Because of the initial cost and the on-going maintenance for the needed “free” parking, housing is more expensive, [15] and businesses must pay higher rent for their premises. We don’t pay directly for the parking as motorists. But we pay for it through higher housing and rent costs, higher costs for a meal at a restaurant, higher costs for a haircut or a pair of slacks we buy, and higher costs to see a theatre production. The “free” parking therefore has hidden costs that distort how we behave, how we travel, and what we buy.

Competitive Leverage

Downtown can never compete with suburban areas on product or service price, availability of parking, access via large capacity roads, or diversity of goods. (Cheaper goods and services are necessarily an advantage of the suburban shopping because suburban shops are able to always provide lower prices than downtowns simply by the much larger volume of customers they are able to serve through regional consumer-sheds.)

The only competitive leverage downtown can have over the suburbs is:

 

1. Agglomeration economies, which are discussed above; and

2. A compact, walkable, delightful, “park once” ambience.

Each time a downtown adds more surface parking, it further deadens a downtown. It subtracts from the very thing that makes the downtown competitive with outlying suburban shopping: compact walkability. Surface parking lots put a “gaptoothed” tear in the urban fabric so important to the pleasant, interesting ambience sought after by many downtown pedestrians. For an enjoyable experience, most pedestrians need to feel a sense of enclosure. They need the engaging experience of active shopfronts next to them on the sidewalk. Downtown parking lots take away from those essential pedestrian experiences. As a German architect once said, putting a parking lot in a downtown is like putting a toilet in the middle of your living room.

Business Owners

As has been demonstrated over the long period within which many cities have had a downtown parking exemption, a city need not worry much about the exemption leading to a shortage of parking because it is quite unlikely that a business would “cut its own throat” by not voluntarily providing what it believes is sufficient parking. Indeed, the key these days is to not require minimum parking, but to establish a parking maximum for walkable parts of the community, so that the competitive leverage and walkable lifestyle is not subverted by sub-optimizing car storage.

Is More Downtown Parking, as Shoup says, a Poison Masquerading as a Cure?

A dead or dying downtown strives to revive itself, typically, by seeking to provide more parking to attract people. But because there is a net loss in terms of downtown space given up per motorist, this becomes a losing proposition. Additional parking-because it consumes so much space-chases away opportunities to establish or strengthen agglomeration economies (there is less downtown land available for buildings/activities/services when more parking is provided). The result is that more parking is akin to “destroying a village in order to save it.” The added parking delivers relatively few people to downtown (because of how much space is needed per person), and most of those people are spending only trivial amounts of money-if any-once they get there, thereby not compensating for the valuable downtown space they are consuming. Each time more parking is provided downtown, the downtown loses opportunities to attract people. Remember: People are attracted by buildings/services/activities. They are not attracted by parking, in and of itself. How many people, for example, would be attracted to a downtown if the downtown consisted of nothing more than a giant surface parking lot?

The Need for a Downtown Parking Occupancy Analysis

It is important to note that a large percentage of cities have not conducted any sort of downtown parking space occupancy analysis for decades, if ever. A city would be ill-advised to engage in any sort of change regarding downtown parking without such an analysis and the use of a parking management consultant to prepare a parking management plan.

I asked a parking expert about the above recommendation that a city conduct a parking occupancy analysis for downtown. He stated that he thinks “recommending a parking occupancy analysis is a very important step.” He pointed out that if such an analysis showed a “parking shortage,” that a city “should consider whether any ‘parking shortage’ is really a supply problem or a pricing problem.” He reiterated that “off-street parking requirements-especially those found in the Institute for Transportation Engineers Parking Generation manual [16]-really do lead to a large oversupply of even free parking. Both Shoup and Richard Willson, a former Shoup student, have commented on the magnitude of [how the manual regularly recommends an] oversupply of free parking.”

Existing Buildings Would Be Illegal or Much Less Financially Feasible

In most every large- and medium-sized cities, requiring the same level of parking downtown that is required elsewhere in the city would make nearly all downtown businesses non-conforming with city land development regulations (unless the developer/owner paid the usually enormous costs for providing such parking). Rarely is a business or civic building able to find or afford sufficient land downtown to provide the parking that is required elsewhere in the city. This is true not only for existing buildings but for most potential future developments downtown.

Summary

The key for a downtown to remain healthy (or return to health) is to build on its strengths. Those strengths are, and will always be, walkable, compact, vibrant, human-scaled ambience. Essential ingredients to achieve this is providing higher density residential development downtown; nurturing a “24-hour downtown;” maximizing active buildings, services and activities downtown; minimizing underutlized land (such as with parking lots); creating a downtown conducive to walking and bicycling; and the providing quality public transit service. This leverage is showing itself to be quite successful and profitable in places throughout America where it is skillfully deployed.

Requiring downtown parking makes downtown housing less affordable. It makes retail business less healthy and makes their goods and services more costly. Required downtown parking makes downtown less walkable. It makes the downtown less safe and less convenient for walking, and makes the downtown less interesting and less enjoyable. Oversupply of parking deadens downtown vibrancy. Required downtown parking would make it impossible to site a number of potential, important uses downtown and would make a number of existing businesses non-conforming. Additional downtown parking would make downtown a less profitable investment and would reduce the ability of downtown to attract new, desirable residents. It would add more of the least desirable of the three forms of parking. It would harm the ability of downtown to spawn and sustain small businesses. It significantly reduces the potential density and intensity of downtown.

Requiring ample, free surface parking downtown is therefore ruinous to a healthy downtown, because it effectively cuts the competitive legs out from under a downtown.

 

Research Regarding Downtowns

See attached article from the most recent issue of Planning Magazine from the American Planning Association.

Excerpt from “Sustainability and Cities” (1999), by Jeff Kenworthy and Peter Newman, Part III.

“Many urge that the way to improve the health of a downtown is to provide more cheap parking. However, the most livable big cities in North America are Portland and Toronto-with much of their success due to putting a cap on downtown parking and providing a quality transit system. Downtown Toronto has reduced parking supply per 1,000 jobs by 11 percent between 1980 and 1990. But in “Detroit’s city center, as in so many other car-dominated cities, the downward spiral appears to continue, despite the efforts to bring people there to shop with the promise of free and easy car parking.” In Toronto, “becoming more transit-oriented and ‘centered’ was something that the mayor said they were never confident about; they were not sure that they would be able to achieve a city that was moving away from the automobile. But they were surprised by how well it worked.” The mayor stated that “good, efficient public transit and scarce, costly parking is a key to being a successful city…The other significant policy in Toronto was bringing people to live in the city center and subcenters.”

Emerging Trends in Real Estate-1998

[“Emerging Trends” is a highly respected, predictive, annual report originally prepared by ERE Yarmouth and Real Estate Research Corporation (ERE Yarmouth is the largest manager of real estate for pension funds in the U.S.). In 2004, the report was being prepared by PricewaterhouseCoopers and the Urban Land Institute, and is now based on consensus outlook from interviews of over 350 real estate investment experts in America.]

Excerpts:

1. Many people just want to be closer to work, coveting a 24-hour lifestyle…

2. Regions that ignore the need to provide alternatives to the automobile will become increasingly troubled…

3. Watch many 50-year old boomers, with or without aching backs, start returning to 24-hour cities for shorter commutes and easier-to-care-for apartments…

4. …convenience is a must and people want the 24-hour model. They want proximity to work, proximity to the demands of life and to the things they want to do. They want convenience.

5. The 24-Hour Model:

The best cities to invest in have:

o Attractive neighborhoods rooted in and around business districts. “Strong residential is a must.”

o A multidimensional environment-entertainment, museums, theater, restaurants, activity day & night.

o Convenient shopping-supermarkets, drug stores and other neighborhood merchants within walking distance in addition to area department and specialty stores.

o Relative safety and security.

o Established mass transportation modes to move people in and out as well as around the city.

The antithesis of the 24-hour city is the 9-to-5 downtown. Typically without strong residential fundamentals, its core empties out after the workday is over. Few people visit or stay in these downtowns at night or on the weekend. Generally, they have lost or are losing retail businesses, have few entertainment or cultural attractions, and often are perceived as “unsafe” after dark.

6. Emerging Trends predicts the next quarter century will be kinder to cities and harder on some suburban areas, especially for investors.

 

Emerging Trends in Real Estate-1999.

 

1. As expected, the traditional 24-hour core cities dominate the list of favored markets as the real estate cycle enters a period of greater stability and equilibrium. Past forecasts have touted these markets as the best places to invest in because of their strong residential fundamentals and multifaceted environments, including mass transportation alternatives to the car.

2. Emerging Trends has said it before, but it bears repeating: People want to live closer to where they work and play. Hectic lifestyles demand convenience. Golfers may gravitate to more suburban locations, and art collectors and restaurant lovers to the city. Whatever the orientation, commercial real estate markets will thrive if they have attractive adjacent residential districts. Areas cut off from good neighborhoods, or showing residential deterioration, will suffer and should be avoided.

3. Until recently, the consequences of suburban sprawl were “far enough off on the horizon” that the average investor neither cared nor thought seriously about them. That indifference is changing. The demographic shift generated in the years following World War II has left half of the U.S. population living in suburban areas. America is dominated by a culture of single-family homes, lawns, and endless shopping strips, punctuated by turning lanes, gasoline stations, and blacktop parking lots. Many cities-particularly Sunbelt agglomerations like Atlanta, Dallas, Houston, Phoenix, and all of Southern California-have actually lost their original urban cores.

4. People are coming to understand that without strong urban cores, areas will ultimately founder. Increasingly, better suburban areas look like smaller versions of traditional cities, featuring attractive neighborhoods, easily accessible retail and office districts, and mass transportation alternatives to the car. Local government officials are focusing more on sidewalks and parks than on parking lots. In fact, successful suburbs actually are mini urban cores, following the time-tested models. In the suburban agglomerations, it’s the urbanizing centers like Buckhead in Atlanta or Ballston, Virginia, outside of Washington, that will be the glue holding these areas together. These places aren’t “edge cities.” They’re cities and 24-hour markets in their own right and they are the best places in the suburban mix to invest in.

 

Emerging Trends in Real Estate-2002.

 

“Interviewees have come to realize that properties in better-planned, growth-constrained markets hold value better in down-market and appreciate more in up-cycles. Areas with sensible zoning (integrating commercial, retail, and residential), parks and street grids with sidewalks will age better than places oriented to disconnected cul-de-sac subdivisions and shopping strips navigable only by car.”

 

Emerging Trends in Real Estate-2003.

1. Familiar problems – catalogued in past Emerging Trends- persist in many suburban markets, contributing to less-satisfying lifestyles and potentially more compromised environments for businesses and property owners. They include:

 

• Traffic congestion and car dependency (pedestrians are an endangered species).

• Lack of planning that would integrate retail, office, and residential districts (adjacent subdivisions and shopping centers aren’t connected).

• Banal commercial strips and gasoline alleys (“if you’ve seen one, you’ve seen them all”).

• Regional infighting and ruinous competition for tax base among local governments.

 

1. As sprawl proceeds and families stream into new subdivisions, these issues become more severe. Except within urbanizing sub-city nodes and better infill locations, suburban properties are hostage to random development pressures, becoming little more than commodity investments over time. Increasingly, local governments and developers realize “they must create enduring main streets and real places” which at least mimic 24-hour environments. Not only are many suburbs “not cool anymore,” they also “don’t work” very well.

 

Emerging Trends in Real Estate-2004.

 

1. Traffic congestion and sprawl encourage “the move back in.” Underutilized, inner-suburban-ring retail is ripe for mixed-use makeovers, including large residential components. Main Street concepts based on new urbanist planning can resurrect dead malls and provide a shot in the arm to struggling communities.

2. Denver and Houston take encouraging steps to refashion their downtowns into more multifaceted 24-hour cores-both featuring growing, though small, residential components. In fact, efforts to revive once-moribund nine-to-five downtowns like these-redeveloping empty office space into loft apartments, turning parking lots into parks, and transforming gloomy side streets into neighborhood shopping districts-will become a major driver of development activity in the next decade. Dallas and Phoenix will need to follow the example.

 

3. Baby boomers continue to influence market trends as they shy away from suburban perimeters and look back toward the urban cores. In the 1970s and 1980s, boomers extended the suburban envelope, raising families en masse in single-family expanses close to good schools and far from big-city problems. Now, some “front-end” empty nester boomers (in their late 50s) are trading those roomy split-levels for more manageable urban condominiums. Not coincidentally, urban life has become more attractive-cities are cleaner and safer, and “there’s a lot more to do than in your sleepy backyard.” That means more high-rise apartments… Baby boomer offspring, the generation X crowd, seek jobs and action closer to city centers, too, pushing demand for rental apartments near urban nodes.

4. “Areas that stand the test of time are generally the older towns with street grids and retail centers.” Convenience counts: walkable communities near mass transit hubs “have caught on,” and smart-growth projects-which emulate traditional town centers-enjoy increasing success. “If people like it, the market will push its growth,” says an interviewee. “Smart growth is better than dumb growth, and it’s about to become more predominant.” It responds to what people are most concerned about-“quality of life and the environment.”

5. The confluence of the “move back in” trend, growth controls that limit new construction, and suburban degeneration have refocused developer and investor attention squarely on infill opportunities. While Emerging Trends interviewees give overall development prospects an anemic 3.5 on a rating scale of 0 (terrible) to 10 (excellent), they award a healthy 5.9 to infill redevelopment.

6. “We’re only in the first chapter of the changeover from growth and sprawl to infill and mixed use,” says an interviewee…Rehabbing underused nine-to-five downtowns and other urban infill will also move to center stage for developers.

 

“Vital Signs: Circulation in the Heart of the City”, by Gerald Forbes, Institute of Transportation Engineers Journal, August 1998.

One of the advantages of a downtown is that it provides a variety of goods and services in a relatively compact area. By converting some of this compact area to parking, we either remove goods and services or displace them. In either event the loosening of the compact land use minimizes one of the advantages of downtown. The current wisdom with respect to downtown is to minimize off-street parking in order to retain a compact form.

The construction of surface parking lots in many instances has little to do with the need for more parking in the CBD. High property taxes combined with the currently depressed economic situation in the downtown have caused many owners to demolish their buildings (thus lowering taxes) and provide surface parking lots while waiting for an upturn in the economy.

Empty surface lots, besides affecting the compactness of the downtown, also give the downtown a look and feel of desolation. Landscaping does little to disguise the inactivity of these areas.

 

“Traffic Issues for Smaller Communities”, by John D. Edwards, Institute of Transportation Engineers Journal, August 1998.

Far too much blame has been placed on parking as the reason for the decline of CBDs. Most small city downtowns have enough parking if used efficiently…Most small community CBDs need to have parking within one to one and one-half blocks for retail customers and two to three blocks for employees and other long-term parkers. This is considerably less than for large cities (population over 500,000), where long-term parkers expect to walk up to six or eight blocks…the perception of parking shortages is more serious than the reality. Simply telling people how many spaces there are and where they are is a big step toward solving the problem.

 

Footnotes

[1] “Parking is important where the place isn’t important,” says Fred Kent… “In places like Faneuil Hall in Boston, it’s amazing how far people are willing to walk. In a dull place, you want a parking space right in front of where you’re going…arbitrary minimum parking requirements ‘assure that a place will be uninteresting.'” – Lisa Wormser, “Don’t Even Think of Parking Here.” Planning. June 1997.

[2] Director of the Victoria Transport Policy Institute.

[3] Walking cities typically devote less than 10% of land to transportation, while automobile-oriented cities devote up to three times as much.” – Todd Litman, “Why and How to Reduce Road and Parking Requirements.” Victoria Transport Policy Institute. November 1998.

[4] As Lewis Mumford pointed out, “the right to have access to every building in the city by private motorcar, in an age when everyone possesses such a vehicle, is actually the right to destroy the city.” And James Marston Fitch, similarly, notes that “the automobile has not merely taken over the street, it has dissolved the living tissue of the city. Its appetite for space is absolutely insatiable.”

[5] “Flexible Parking Codes for Older Downtowns,” APA PAS Memo, November 1993.

[6] Professor or urban planning at UCLA and a nationally prominent authority on parking management.

[7] “Rethinking Parking Policies and Regulations,” – Jason Wittenberg. APA PAS Memo. August 1998.

[8] “…increasing parking requirements from one to two spaces per unit reduces the maximum potential density for two-story, 500 square foot…apartments from 88 to 64 units per acre, representing a 37% decline…requiring one off-street parking space per unit reduced dwelling units per acre in new multi-family developments by 30%, and increased construction costs by 18%. This significantly reduced the amount of urban land available for infill housing and gave developers an incentive to develop fewer, larger and lower quality units. The resulting reduction in affordable housing construction caused an overall increase in local rents…To provide housing that can be purchased at $80,000 per unit…a subsidy of only $4,000 would be needed if no parking is required, a $12,792 subsidy would be required for one parking space per unit, $26,251 for two parking spaces, and $51,376 for three.”- Todd Litman, “Parking Requirement Impacts on Housing Affordability.” Victoria Transport Policy Institute. March 1999.

[9] “Suburban Parking Requirements,” APA Journal, Winter 1995.

[10] Allowing businesses that are adjacent to share their parking with other businesses with different hours of operation is one way to reduce the undesirable land use patterns that can result from excessive off-street parking provision downtown. Because less land needs to be consumed when downtown businesses share parking instead of building a separate parking lot for each business, “…higher overall densities and fewer interruptions in the urban fabric…” can be achieved. ( Jason Wittenberg. APA PAS Memo. August 1998.)

[11] Cities and Automobile Dependence (1989).

[12] Minimum downtown parking requirements can detract from desirable city travel patterns. “…the amount of surface parking in and around CBDs [can be] the single most important factor in determining the modal split for trips to the CBD. Municipalities might consider first setting modal split goals (e.g., 60 percent transit use during morning peak hours) and then determining parking policies and standards that will help meet those goals.” – Jason Wittenberg. APA PAS Memo. August 1998.

[13] “Minimum parking standards are often either avoided or set much lower in Central Business Districts…downtown residents tend to own fewer cars compared with the general population.” – Jason Wittenberg. APA PAS Memo. August 1998.

[14] “Parking lots exert a powerful undertow on local economies by taking up space that could be put to more profitable uses…each unused parking space wastes $600 to $900 a year in land development costs; vacant spaces in parking structures cost more…In auto-dependent Texas and California, office and shopping developments typically have nearly twice the parking they need…the average parking requirements…exceed demand by 16 to 63 percent…” – Lisa Wormser, “Don’t Even Think of Parking Here.” Planning. June 1997.

[15] “Each additional dollar of land costs for parking therefore increases housing prices by three dollars. Developers cannot afford to build a simple, lower priced housing when their land costs increase, so they target higher end markets…Parking requirements reduce developers’ incentive to produce affordable housing.” – Todd Litman, “Parking Requirement Impacts on Housing Affordability.” Victoria Transport Policy Institute. March 1999.

[16] This manual is considered throughout the nation as the most authoritative source for determining parking demand.

 

Parking: A Poison Posing as a Cure

by Philip Langdon

April/May 2005

New Urban News

 

 

Pave paradise? No, ditch the parking lot

 

For years urbanists have tried a wide assortment of tactics to reduce the damage that parking inflicts on communities. Now comes UCLA urban planning professor Donald C. Shoup with a radical, yet carefully argued prescription: Governments should stop requiring off-street parking. In The High Cost of Free Parking, Shoup systematically attacks ingrained ideas that have prevented urbanists from asking the most basic question of all: Why should governments require parking other than on the streets?

“Few people now recognize parking requirements as a disaster because the costs are hidden and the harm is diffused,” Shoup says in the 734-page, $59.95 hardcover from APA Planners Press. He contends that “parking requirements cause great harm: they subsidize cars, distort transportation choices, warp urban form, increase housing costs, burden low-income households, debase urban design, damage the economy, and degrade the environment.” His verdict: “Off-street parking requirements have all the hallmarks of a great planning disaster.”

A Yale-trained economist and former director of the Institute of Transportation Studies at UCLA, Shoup says the longstanding municipal practice of assigning parking requirements is nonsense. “Urban planners set minimum parking requirements for every land use, but the requirements often seem pulled out of thin air or based on studies that are poorly conceived,” he says. “In turn, these faulty standards and policies are perpetuated as they are copied from one city to the next.” The planning profession, in its eagerness to be comprehensive, has identified more than 600 different uses, each with its own parking requirement. “A gas station must provide 1.5 parking spaces per fuel nozzle, and a mausoleum must provide parking spaces per maximum number of interments in a one-hour period. Why?” he asks. “Nobody knows.”

Shoup has written a biting volume that presents detailed examples and exhibits high ambition. His goal is to transform future debates about parking and save cities and towns from what he sees as misguided attempts to make parking “free” and plentiful. After they have considered the evidence, Shoup says, “I believe planners will eventually admit that off-street parking requirements are a well-intentioned folly similar to lead therapy – a poison prescribed as a cure.”

In assailing the parking-requirement enterprise, Shoup argues:

* “Off-street parking requirements encourage everyone to drive wherever they go because they know they can usually park free when they get there.” Those who don’t drive nonetheless subsidize the parkers, through higher prices that are charged to everyone for goods and services.

* “Parking requirements create especially severe problems in older commercial areas,” where it is often impossible to erect new buildings at traditional densities while satisfying municipal parking ratios. Shoup says such requirements “have hindered the rebuilding of Los Angeles’s older retail corridors that were destroyed in the 1992 riots.”

* “Off-street parking requirements especially harm low-income and renter families because they own fewer cars but still pay for parking indirectly.” Nonprofit developers in San Francisco have estimated that parking requirements add 20 percent to the cost of each affordable housing unit and reduce the number of units that can be built on a site. “We’re forcing people to build parking that people cannot afford,” observes Amit Ghosh, the city’s chief of comprehensive planning. A study in Oakland, California, found that requiring one parking space per dwelling “increased housing costs by 18 percent and reduced density by 30 percent.”

* “Past some critical point, more parking spaces harm rather than help” the central business district. They reduce compactness and proximity – chief advantages of an urban location.

* “Popular historic styles like courtyard housing cannot be replicated with today’s parking requirements.”

NEW URBANIST, ALSO

New urbanists need to pay close attention to parking, Shoup says. He notes that the SmartCode produced by Duany Plater-Zyberk & Company and intended to facilitate urban development nonetheless includes parking requirements, such as three spaces per 1,000 square feet of retail in a city center. “Even at the fountainhead of new urbanist thinking, parking requirements dictate density, and cars rule the city,” Shoup asserts.

Much of the solution to the parking morass lies in letting the market decide how much parking is provided, and where, Shoup suggests. Presumably the result will be fewer parking lots, a higher density of development, and a shift toward mass transit, bicycling, walking, and other forms of movement. The money saved can be put to other uses. He notes, “In 2002, the total subsidy for off-street parking was somewhere between $127 billion and $374 billion a year. If we also count the subsidy for free and underpriced curb parking, the total subsidy for parking would be far higher.”

“Reducing or removing off-street parking requirements … can increase the supply and reduce the price of all housing, without any subsidy,” Shoup contends. “Many brownfield sites that are now difficult to redevelop may suddenly find economic uses if cities remove off-street parking requirements.”

If less off-street parking were supplied, wouldn’t motorists tend to park on the streets, especially where spaces are free? Yes, Shoup acknowledges. So he suggests changing municipal policies on curb parking, too. “I recommend charging for curb parking (which does not necessarily require conventional parking meters, of course) whenever there would be a shortage of curb spaces in the absence of charging,” Shoup told New Urban News. If parking is not in short supply when it’s free, there is no reason to charge for it, according to Shoup. “I recommend the classic Goldilocks method of setting the prices for curb parking: the price is too high if too many spaces are vacant, and the price is too low if no spaces are vacant. When about 15 percent of the spaces are vacant, the price is just right.”

Charging market-rate prices for on-street parking would bring in revenue from parkers and, in his view, it would discourage unnecessary automobile use. He notes that free or low rates at meters encourage motorists to cruise the streets, generating congestion and pollution while looking for spaces that are cheaper than those in parking garages. Cities could review their parking rates and adjust them to the demand. In entertainment and shopping districts that stay busy until late in the evening, meters might charge $2 an hour during the day, $3 in the evening, and become free after 2 a.m.

One way to make the shift from free on-street parking palatable would be to establish “parking benefit districts.” These are organizations, possibly at the neighborhood level, that would decide the rates for curb parking in their area and receive at least part of the revenue. They could spend the money on public benefits for the neighborhood, Shoup says.

 

New York City is the Greenest City in America

GREEN MANHATTAN

Why New York is the greenest city in the U.S.

By David Owen

Published in The New Yorker

10/18/04

 

My wife and I got married right out of college, in 1978. We were young and naïve and unashamedly idealistic, and we decided to make our first home in a utopian environmentalist community in New York State. For seven years, we lived, quite contentedly, in circumstances that would strike most Americans as austere in the extreme: our living space measured just seven hundred square feet, and we didn’t have a dishwasher, a garbage disposal, a lawn, or a car. We did our grocery shopping on foot, and when we needed to travel longer distances we used public transportation. Because space at home was scarce, we seldom acquired new possessions of significant size. Our electric bills worked out to about a dollar a day.

The utopian community was Manhattan. (Our apartment was on Sixty-ninth Street, between Second and Third.) Most Americans, including most New Yorkers, think of New York City as an ecological nightmare, a wasteland of concrete and garbage and diesel fumes and traffic jams, but in comparison with the rest of America it’s a model of environmental responsibility. By the most significant measures, New York is the greenest community in the United States, and one of the greenest cities in the world. The most devastating damage humans have done to the environment has arisen from the heedless burning of fossil fuels, a category in which New Yorkers are practically prehistoric. The average Manhattanite consumes gasoline at a rate that the country as a whole hasn’t matched since the mid-nineteen-twenties, when the most widely owned car in the United States was the Ford Model T. Eighty-two per cent of Manhattan residents travel to work by public transit, by bicycle, or on foot. That’s ten times the rate for Americans in general, and eight times the rate for residents of Los Angeles County. New York City is more populous than all but eleven states; if it were granted statehood, it would rank 51st in per-capita energy use.

“Anyplace that has such tall buildings and heavy traffic is obviously an environmental disaster-except that it isn’t,” John Holtzclaw, a transportation consultant for the Sierra Club and the Natural Resources Defense Council, told me. “If New Yorkers lived at the typical American sprawl density of three households per residential acre, they would require many times as much land. They’d be driving cars, and they’d have huge lawns and be using pesticides and fertilizers on them, and then they’d be overwatering their lawns, so that runoff would go into streams.” The key to New York’s relative environmental benignity is its extreme compactness. Manhattan’s population density is more than eight hundred times that of the nation as a whole. Placing one and a half million people on a twenty-three-square-mile island sharply reduces their opportunities to be wasteful, and forces the majority to live in some of the most inherently energy efficient residential structures in the world: apartment buildings. It also frees huge tracts of land for the rest of America to sprawl into.

My wife and I had our first child in 1984. We had both grown up in suburbs, and we decided that we didn’t want to raise our tiny daughter in a huge city. Shortly after she learned to walk, we moved to a small town in northwestern Connecticut, about 90 miles north of midtown Manhattan. Our house, which was built in the late 1700s, is across a dirt road from a nature preserve and is shaded by tall white-pine trees. After big rains, we can hear a swollen creek rushing by at the bottom of the hill. Deer, wild turkeys, and the occasional black bear feed themselves in our yard. From the end of our driveway, I can walk several miles through woods to an abandoned nineteenth-century railway tunnel, while crossing only one paved road.

Yet our move was an ecological catastrophe. Our consumption of electricity went from roughly four thousand kilowatt-hours a year, toward the end of our time in New York, to almost thirty thousand kilowatt-hours in 2003-and our house doesn’t even have central air-conditioning. We bought a car shortly before we moved, and another one soon after we arrived, and a third one ten years later. (If you live in the country and don’t have a second car, you can’t retrieve your first car from the mechanic after it’s been repaired; the third car was the product of a mild midlife crisis, but soon evolved into a necessity.) My wife and I both work at home, but we manage to drive thirty thousand miles a year between us, mostly doing ordinary errands. Nearly everything we do away from our house requires a car trip. Renting a movie and later returning it, for example, consumes almost two gallons of gasoline, since the nearest Blockbuster is ten miles away and each transaction involves two round trips. When we lived in New York, heat escaping from our apartment helped to heat the apartment above ours; nowadays, many of the BTUs produced by our brand-new, extremely efficient oil-burning furnace leak through our 200-year-old roof and into the dazzling star-filled winter sky above.

When most Americans think about environmentalism, they picture wild, unspoiled landscapes-the earth before it was transmogrified by human habitation. New York City is one of the most thoroughly altered landscapes imaginable, an almost wholly artificial environment, in which the terrain’s primeval contours have long since been obliterated and most of the parts that resemble nature (the trees on side streets, the rocks in Central Park) are essentially decorations. Ecology-minded discussions of New York City often have a hopeless tone, and focus on ways in which the city might be made to seem somewhat less oppressively man-made: by increasing the area devoted to parks and greenery, by incorporating vegetation into buildings themselves, by reducing traffic congestion, by easing the intensity of development, by creating open space around structures. But most such changes would actually undermine the city’s extraordinary energy efficiency, which arises from the characteristics that make it surreally synthetic.

Because densely populated urban centers concentrate human activity, we think of them as pollution crisis zones. Calculated by the square foot, New York City generates more greenhouse gases, uses more energy, and produces more solid waste than most other American regions of comparable size. On a map depicting negative environmental impacts in relation to surface area, therefore, Manhattan would look like an intense hot spot, surrounded, at varying distances, by belts of deepening green.

If you plotted the same negative impacts by resident or by household, however, the color scheme would be reversed. My little town has about four thousand residents, spread over 38.7 thickly wooded square miles, and there are many places within our town limits from which no sign of settlement is visible in any direction. But if you moved eight million people like us, along with our dwellings and possessions and current rates of energy use, into a space the size of New York City, our profligacy would be impossible to miss, because you’d have to stack our houses and cars and garages and lawn tractors and swimming pools and septic tanks higher than skyscrapers. (Conversely, if you made all eight million New Yorkers live at the density of my town, they would require a space equivalent to the land area of the six New England states plus Delaware and New Jersey.)

Spreading people out increases the damage they do to the environment, while making the problems harder to see and to address.

Of course, living in densely populated urban centers has many drawbacks. Even wealthy New Yorkers live in spaces that would seem cramped to Americans living almost anywhere else. A well-to-do friend of mine who grew up in a town house in Greenwich Village thought of his upbringing as privileged until, in prep school, he visited a classmate from the suburbs and was staggered by the house, the lawn, the cars, and the swimming pool, and thought, with despair, You mean I could live like this? Manhattan is loud and dirty, and the subway is depressing, and the fumes from the cars and cabs and buses can make people sick. Presumably for environmental reasons, New York City has one of the highest childhood-asthma rates in the country, with an especially alarming concentration in East Harlem.

Nevertheless, barring an almost inconceivable reduction in the earth’s population, dense urban centers offer one of the few plausible remedies for some of the world’s most discouraging environmental ills. To borrow a term from the jargon of computer systems, dense cities are scalable, while sprawling suburbs are not. The environmental challenge we face, at the current stage of our assault on the world’s non-renewable resources, is not how to make our teeming cities more like the pristine countryside. The true challenge is how to make other settled places more like Manhattan. This notion has yet to be widely embraced, partly because it is counterintuitive, and partly because most Americans, including most environmentalists, tend to view cities the way Thomas Jefferson did, as “pestilential to the morals, the health, and the liberties of man.” New York is the place that’s fun to visit but you wouldn’t want to live there. What could it possibly teach anyone about being green?

New York’s example, admittedly, is difficult for others to imitate, because the city’s remarkable population density is the result not of conscientious planning but of a succession of serendipitous historical accidents. The most important of those accidents was geographic: New York arose on a smallish island rather than on the mainland edge of a river or a bay, and the surrounding water served as a physical constraint to outward expansion. Manhattan is like a typical seaport turned inside out-a city with a harbor around it, rather than a harbor with a city along its edge. Insularity gave Manhattan more shoreline per square mile than other ports, a major advantage in the days when one of the world’s main commercial activities was moving cargoes between ships. It also drove early development inward and upward.

A second lucky accident was that Manhattan’s street plan was created by merchants who were more interested in economic efficiency than in boulevards, parks, or empty spaces between buildings. The resulting crush of architecture is actually humanizing, because it brings the city’s commercial, cultural, and other offerings closer together, thereby increasing their accessibility-a point made forty-three years ago by the brilliantly iconoclastic urban thinker Jane Jacobs, in her landmark book “The Death and Life of Great American Cities.”

A third accident was the fact that by the early nineteen-hundreds most of Manhattan’s lines had been filled in to the point where not even Robert Moses could easily redraw them to accommodate the great destroyer of American urban life, the automobile. Henry Ford thought of cars as tools for liberating humanity from the wretchedness of cities, which he viewed with as much distaste as Jefferson did. In 1932, John Nolen, a prominent Harvard-educated urban planner and landscape architect, said, “The future city will be spread out, it will be regional, it will be the natural product of the automobile, the good road, electricity, the telephone, and the radio, combined with the growing desire to live a more natural, biological life under pleasanter and more natural conditions.” This is the idea behind suburbs, and it’s still seductive. But it’s also a prescription for sprawl and expressways and tremendous waste.

New York City’s obvious urban antithesis, in terms of density and automobile use, is metropolitan Los Angeles, whose metastatic outward growth has been virtually unimpeded by the lay of the land, whose early settlers came to the area partly out of a desire to create space between themselves and others, and whose main development began late enough to be shaped by the needs of cars. But a more telling counterexample is Washington, D.C., whose basic layout was conceived at roughly the same time as Manhattan’s, around the turn of the nineteenth century. The District of Columbia’s original plan was created by an eccentric French-born engineer and architect named Pierre-Charles L’Enfant, who befriended General Washington during the Revolutionary War and asked to be allowed to design the capital. Many of modern Washington’s most striking features are his: the broad, radial avenues; the hublike traffic circles; the sweeping public lawns and ceremonial spaces.

Washington is commonly viewed as the most intelligently beautiful-the most European-of large American cities. Ecologically, though, it’s a mess. L’Enfant’s expansive avenues were easily adapted to automobiles, and the low, widely separated buildings (whose height is limited by law) stretched the distance between destinations.

There are many pleasant places in Washington to go for a walk, but the city is difficult to get around on foot: the wide avenues are hard to cross, the traffic circles are like obstacle courses, and the grandiloquent empty spaces thwart pedestrians, by acting as what Jane Jacobs calls “border vacuums.” (One of Jacobs’s many arresting observations is that parks and other open spaces can reduce urban vitality, by creating dead ends that prevent people from moving freely between neighborhoods and by decreasing activity along their edges.) Many parts of Washington, furthermore, are relentlessly homogeneous. There are plenty of dignified public buildings on Constitution Avenue, for example, but good luck finding a dry cleaner, a Chinese restaurant, or a grocery store. The city’s horizontal, airy design has also pushed development into the surrounding countryside. The fastest growing county in the United States is Loudoun County, Virginia, at the rapidly receding western edge of the Washington metropolitan area.

The Sierra Club, an environmental organization that advocates the preservation of wilderness and wildlife, has a national campaign called Challenge to Sprawl. The aim of the program is to arrest the mindless conversion of undeveloped countryside into subdivisions, strip malls, and S.U.V.-clogged expressways. The Sierra Club’s Web site features a slide-show-like demonstration that illustrates how various sprawling suburban intersections could be transformed into far more appealing and energy-efficient developments by implementing a few modifications, among them widening the sidewalks and narrowing the streets, mixing residential and commercial uses, moving buildings closer together and closer to the edges of sidewalks (to make them more accessible to pedestrians and to increase local density), and adding public transportation-all fundamental elements of the widely touted anti-sprawl strategy known as Smart Growth.

In a recent telephone conversation with a Sierra Club representative involved in Challenge to Sprawl, I said that the organization’s anti-sprawl suggestions and the modified streetscapes in the slide show shared many significant features with Manhattan-whose most salient characteristics include wide sidewalks, narrow streets, mixed uses, densely packed buildings, and an extensive network of subways and buses. The representative hesitated, then said that I was essentially correct, although he would prefer that the program not be described in such terms, since emulating New York City would not be considered an appealing goal by most of the people whom the Sierra Club is trying to persuade.

An obvious way to reduce consumption of fossil fuels is to shift more people out of cars and into public transit. In many parts of the country, though, public transit has been stagnant or in decline for years. New York City’s Metropolitan Transportation Authority and Department of Transportation account for nearly a third of all the transit passenger miles traveled in the United States and for nearly four times as many passenger miles as the Washington Metropolitan Area Transit Authority and the Los Angeles County Metropolitan Transportation Authority combined.

New York City looks so little like other parts of America that urban planners and environmentalists tend to treat it as an exception rather than an example, and to act as though Manhattan occupied an idiosyncratic universe of its own. But the underlying principles apply everywhere. “The basic point,” Jeffrey Zupan, an economist with the Regional Planning Association, told me, “is that you need density to support public transit. In all cities, not just in New York, once you get above a certain density two things happen. First, you get less travel by mechanical means, which is another way of saying you get more people walking or biking; and, second, you get a decrease in the trips by auto and an increase in the trips by transit. That threshold tends to be around seven dwellings per acre. Once you cross that line, a bus company can put buses out there, because they know they’re going to have enough passengers to support a reasonable frequency of service.”

Phoenix is the sixth-largest city in the United States and one of the fastest growing among the top ten, yet its public transit system accounts for just one per cent of the passenger miles that New York City’s does. The reason is that Phoenix’s burgeoning population has spread so far across the desert-greater Phoenix, whose population is a little more than twice that of Manhattan, covers more than two hundred times as much land-that no transit system could conceivably serve it. And no amount of browbeating, public-service advertising, or federal spending can change that.

Cities, states, and the federal government often negate their own efforts to nurture public transit by simultaneously spending huge sums to make it easier for people to get around in cars. When a city’s automobile traffic becomes congested, the standard response has long been to provide additional capacity by building new roads or widening existing ones. This approach eventually makes the original problem worse, by generating what transportation planners call “induced traffic”: every mile of new highway lures passengers from public transit and other more efficient modes of travel, and makes it possible for residential and commercial development to spread even farther from urban centers. And adding public transit in the hope of reducing automobile congestion is as self-defeating as building new highways, because unclogging roads, if successful, just makes driving seem more attractive, and the roads fill up again. A better strategy would be to eliminate existing traffic lanes and parking spaces gradually, thereby forcing more drivers to use less environmentally damaging alternatives-in effect, “induced transit.”

One reason New Yorkers are the most dedicated transit users in America is that congestion on the city’s streets makes driving extraordinarily disagreeable. The average speed of crosstown traffic in Manhattan is little more than that of a brisk walker, and in midtown at certain times of the day the cars on the side streets move so slowly that they appear almost to be parked. Congestion like that urges drivers into the subways, and it makes life easier for pedestrians and bicycle riders by slowing cars to a point where they constitute less of a physical threat.

Even in New York City, the relationship between traffic and transit is not well understood. A number of the city’s most popular recent transportation-related projects and policy decisions may in the long run make the city a worse place to live in by luring passengers back into their cars and away from public transportation: the rebuilding and widening of the West Side Highway, the implementation of EZ-Pass on the city’s toll bridges, the decision not to impose tolls on the East River bridges, and the current renovation of the F.D.R. Drive (along with the federally funded $139 million Outboard Detour Roadway, which is intended to prevent users of the F.D.R. from being inconvenienced while the work is under way).

Public transit itself can be bad for the environment if it facilitates rather than discourages sprawl. The Washington Metropolitan Area Transit Authority is considering extensions to some of the most distant branches of its system, and those extensions, if built, will allow people to live even farther from the city’s center, creating new, non-dense suburbs where all other travel will be by automobile, much of it to malls and schools and gas stations that will be built to accommodate them. Transit is best for the environment when it helps to concentrate people in dense urban cores. Building the proposed Second Avenue subway line would be environmentally sound, because it would increase New Yorkers’ ability to live without cars; building a bullet train between Penn Station and the Catskills (for example) would not be sound, because it would enable the vast, fuel-squandering apparatus of suburbia to establish itself in a region that couldn’t support it otherwise.

On the afternoon of August 14, 2003, I was working in my office, on the third floor of my house, when the lights blinked, my window air-conditioner sputtered, and my computer’s backup battery kicked in briefly. This was the beginning of the great blackout of 2003, which halted electric service in parts of eight Northeastern and Midwestern states and in southeastern Canada. The immediate cause was eventually traced to Ohio, but public attention often focused on New York City, which had the largest concentration of affected power customers. Richard B. Miller, who resigned as the senior energy adviser for the city of New York six weeks before the blackout, reportedly over deep disagreements with the city’s energy policy, told me, “When I was with the city, I attended a conference on global warming where somebody said, ‘We really need to raise energy and electricity prices in New York City, so that people will consume less.’ And my response at that conference was ‘You know, if you’re talking about raising energy prices in New York City only, then you’re talking about something that’s really bad for the environment. If you make energy prices so expensive in the city that a business relocates from Manhattan to New Jersey, what you’re really talking about, in the simplest terms, is a business that’s moving from a subway stop to a parking lot. And which of those do you think is worse for the environment?’ ”

People who live in cities use only about half as much electricity as people who don’t, and people who live in New York City generally use less than the urban average. A truly enlightened energy policy would reward city dwellers and encourage others to follow their good example. Yet New York City residents pay more per kilowatt-hour than almost any other American electricity customers; taxes and other government charges, most of which are not enumerated on electricity bills, can constitute close to 20 percent of the cost of power for residential and commercial users in New York. Richard Miller, after leaving his job with New York City, went to work as a lawyer in Consolidated Edison’s regulatory affairs department, spurred by his thinking about the environment. He believes that state and local officials have historically taken unfair advantage of the fact that there is no political cost to attacking a big utility. Con Ed pays more than six hundred million dollars a year in property taxes, making it by far the city’s largest property-tax payer, and those charges inflate electric bills. Meanwhile, the cost of driving is kept artificially low. (Fifth Avenue and the West Side Highway don’t pay property taxes, for example.) “In addition,” Miller said, “the burden of improving the city’s air has fallen far more heavily on power plants, which contribute only a small percentage of New York City’s air pollution, than it has on cars-even though motor vehicles are a much bigger source.”

Last year, the National Building Museum, in Washington, D.C., held a show called “Big & Green: Toward Sustainable Architecture in the 21st Century.” A book of the same name was published in conjunction with the show, and on the book’s dust jacket was a photograph of 4 Times Square, also known as the Condé Nast Building, a 48-story glass-and-steel tower between Forty-second and Forty-third Streets, a few blocks west of Grand Central Terminal. (The New Yorker’s offices occupy two floors in the building.) When 4 Times Square was built, in 1999, it was considered a major breakthrough in urban development. As Daniel Kaplan, a principal of Fox & Fowle Architects, the firm that designed it, wrote in an article in Environmental Design & Construction in 1997, “When thinking of green architecture, one usually associates smaller scale,” and he cited as an example the headquarters of the Rocky Mountain Institute, a nonprofit environmental research and consulting firm based in Snowmass, Colorado. The R.M.I. building is a four-thousand-square-foot, super-insulated, passive solar structure with curving sixteen-inch-thick walls, set into a hillside about 15 miles north of Aspen. It was erected in the early eighties and serves partly as a showcase for green construction technology. (It is also the home of Amory Lovins, who is R.M.I.’s cofounder and chief executive officer.) R.M.I. contributed to the design of 4 Times Square, which has many innovative features, among them collection chutes for recyclable materials, photovoltaic panels incorporated into parts of its skin, and curtain-wall construction with exceptional shading and insulating properties.

These are all important innovations. In terms of the building’s true ecological impact, though, they are distinctly secondary. (The power generated by the photovoltaic panels supplies less than one per cent of the building’s requirements.) The two greenest features of 4 Times Square are ones that most people never even mention: it is big, and it is situated in Manhattan.

Environmentalists have tended to treat big buildings as intrinsically wasteful, because large amounts of energy are expended in their construction, and because the buildings place intensely localized stresses on sewers, power lines, and water systems. But density can create the same kinds of ecological benefits in individual structures that it does in entire communities. Tall buildings have much less exposed exterior surface per square foot of interior space than smaller buildings do, and that means they present relatively less of themselves to the elements, and their small roofs absorb less heat from the sun during cooling season and radiate less heat from inside during heating season.

(The beneficial effects are greater still in Manhattan, where one building often directly abuts another.) A study by Michael Phillips and Robert Gnaizda, published in CoEvolution Quarterly in 1980, found that an ordinary apartment in a typical building near downtown San Francisco used just a fifth as much heating fuel as a new tract house in Davis, a little more than seventy miles away. Occupants of tall buildings also do a significant part of their daily coming and going in elevators, which, because they are counterweighted and thus require less motor horsepower, are among the most energy efficient passenger vehicles in the world.

Bruce Fowle, a founder of Fox & Fowle, told me, “The Condé Nast Building contains 1.6 million square feet of floor space, and it sits on one acre of land. If you divided it into 48 one-story suburban office buildings, each averaging 33,000 square feet, and spread those one-story buildings around the countryside, and then added parking and some green space around each one, you’d end up consuming at least a 150 acres of land. And then you’d have to provide infrastructure, the highways and everything else.” Like many other buildings in Manhattan, 4 Times Square doesn’t even have a parking lot, because the vast majority of the six thousand people who work inside it don’t need one. In most other parts of the country, big parking lots are not only necessary but are required by law. If my town’s zoning regulations applied in Manhattan, 4 Times Square would have needed sixteen thousand parking spaces, one for every hundred square feet of office floor space. The Rocky Mountain Institute’s showcase headquarters has double-paned krypton-filled windows, which admit 75 per cent as much light as ordinary windows while allowing just 10 per cent as much heat to escape in cold weather. That’s a wonderful feature, and one of many in the building which people ought to copy. In other ways, though, the R.M.I. building sets a very poor environmental example. It was built in a fragile location, on virgin land more than seven thousand feet above sea level. With just four thousand square feet of interior space, it can hold only six of R.M.I.’s 18 full-time employees; the rest of them work in a larger building a mile away. Because the two buildings are in a thinly populated area, they force most employees to drive many miles-including trips between the two buildings-and they necessitate extra fuel consumption by delivery trucks, snowplows, and other vehicles. If R.M.I.’s employees worked on a single floor of a big building in Manhattan (or in downtown Denver) and lived in apartments nearby, many of them would be able to give up their cars, and the thousands of visitors who drive to Snowmass each year to learn about environmentally responsible construction could travel by public transit instead.

Picking on R.M.I.-which is one of the world’s most farsighted environmental organizations-may seem unfair, but R.M.I., along with many other farsighted environmental organizations, shares responsibility for perpetuating the powerful anti-city bias of American environmentalism. That bias is evident in the technical term that is widely used for sprawl: “urbanization.” Thinking of freeways and strip malls as “urban” phenomena obscures the ecologically monumental difference between Phoenix and Manhattan, and fortifies the perception that population density is an environmental ill. It also prevents most people from recognizing that R.M.I.’s famous headquarters-which sits on an isolated parcel more than a hundred and eighty miles from the nearest significant public transit system-is sprawl.

When I told a friend recently that I thought New York City should be considered the greenest community in America, she looked puzzled, then asked, “Is it because they’ve started recycling again?” Her question reflected a central failure of the American environmental movement: that too many of us have been made to believe that the most important thing we can do to save the earth and ourselves is to remember each week to set our cans and bottles and newspapers on the curb. Recycling is popular because it enables people to relieve their gathering anxieties about the future without altering the way they live. But most current recycling has, at best, a neutral effect on the environment, and much of it is demonstrably harmful. As William McDonough and Michael Braungart point out in “Cradle to Cradle: Remaking the Way We Make Things,” most of the materials we place on our curbs are merely “downcycled”-converted to a lower use, providing a pause in their inevitable journey to a landfill or an incinerator-often with a release of toxins and a net loss of fuel, among other undesirable effects.

By far the worst damage we Americans do to the planet arises not from the newspapers we throw away but from the eight hundred and fifty million or so gallons of oil we consume every day. We all know this at some level, yet we live like alcoholics in denial. How else can we explain that our cars have grown bigger, heavier, and less fuel efficient at the same time that scientists have become more certain and more specific about the consequences of our addiction to gasoline?

On a shelf in my office is a small pile of recent books about the environment which I plan to reread obsessively if I’m found to have a terminal illness, because they’re so unsettling that they may make me less upset about being snatched from life in my prime. At the top of the pile is “Out of Gas: The End of the Age of Oil,” by David Goodstein, a professor at the California Institute of Technology, which was published earlier this year. “The world will soon start to run out of conventionally produced, cheap oil,” Goodstein begins. In succeeding pages, he lucidly explains that humans have consumed almost a trillion barrels of oil (that’s forty-two trillion gallons), or about half of the earth’s total supply; that a devastating global petroleum crisis will begin not when we have pumped the last barrel out of the ground but when we have reached the halfway point, because at that moment, for the first time in history, the line representing supply will fall through the line representing demand; that we will probably pass that point within the current decade, if we haven’t passed it already; that various well-established laws of economics are about to assert themselves, with disastrous repercussions for almost everything; and that “civilization as we know it will come to an end sometime in this century unless we can find a way to live without fossil fuels.”

Standing between us and any conceivable solution to our energy nightmare are our cars and the asphalt-latticed country we have built to oblige them. Those cars have defined our culture and our lives. A car is speed and sex and power and emancipation. It makes its driver a self-sufficient nation of one. It is everything a city is not.

Most of the car’s most tantalizing charms are illusory, though. By helping us to live at greater distances from one another, driving has undermined the very benefits that it was meant to bestow. Ignacio San Martín, an architecture professor and the head of the graduate urban-design program at the University of Arizona, told me, “If you go out to the streets of Phoenix and are able to see anybody walking-which you likely won’t-they are going to tell you that they love living in Phoenix because they have a beautiful house and three cars. In reality, though, once the conversation goes a little bit further, they are going to say that they spend most of their time at home watching TV, because there is absolutely nothing to do.” One of the main attractions of moving to the suburbs is acquiring ground of your own, yet you can travel for miles through suburbia and see no one doing anything in a yard other than working on the yard itself (often with the help of a riding lawnmower, one of the few four-wheeled passenger vehicles that get worse gas mileage than a Hummer). The modern suburban yard is perfectly, perversely self-justifying: its purpose is to be taken care of.

In 1801, in his first Inaugural address, Thomas Jefferson said that the American wilderness would provide growing room for democracy-sustaining agrarian patriots “to the thousandth and thousandth generation.” Jefferson didn’t foresee the interstate highway system, and his arithmetic was off, in any case, but he nevertheless anticipated (and, in many ways, embodied) the ethos of suburbia, of anti-urbanism, of sprawl. The standard object of the modern American dream, the single-family home surrounded by grass, is a mini-Monticello. It was the car that put it within our reach. But what a terrible price we have paid-and have yet to pay-for our liberation from the city.