Bringing nature back to the city while still accepting cars and suburbs?

In modern history, the city has often been seen as the antithesis of nature or the countryside. With dirty factories, a multitude of noisy vehicles, and buildings crammed on top of each other, Americans (and others) responded in part by moving out from the city and into suburbs when the opportunity arose.

But there are still arguments about whether nature can return to the city and what exactly it might mean:

The following lies at the heart of the agenda of a growing number of designers and architects who refer to themselves as “landscape urbanists”: “the notion that the most important part of city planning is not the arrangement of buildings, but the natural landscape upon which those buildings stand.”…

“Proponents envision weaving nature and city together into a new hybrid that functions like a living ecosystem. And instead of pushing people closer together in service of achieving density … landscape urbanism allows for the possibility of an environmentally friendly future that includes spacious suburbs, and doesn’t demand that Americans stop driving their convenient cars. Americans have decided how they want to live, they argue, and the job of urban designers is to intelligently accommodate them while finding ways to protect the environment.”

And that’s the rub—the bit about cars and “spacious suburbs.” Architects who believe that a fresh commitment to urban living offers the best path to a sustainable future are deeply disconcerted by this quasi-green rhetoric, and by the way it’s catching on at trendy architecture schools. They call it a “a misguided surrender to suburban sprawl.”

This is part of a larger debate about land, density, lifestyles, and government funding: can we be truly “green” as long as there are any suburbs and cars? It sounds like one side says we need to compromise with the pro-suburban forces in America while another is holding out for a more urban world. Such a dividing line affects issues including sprawl, gas taxes, land use, high-speed rail, and more.

I’m not sure why it has to be an either/or question. Cities could adopt different tactics. Is Central Park a failure because it is compromised by several roads running through it? This seems more like an ideological battle rather than a discussion about what could happen in American cities in the near future.

Fitting a new home into an older neighborhood

Teardowns are an issue in communities across the United States. In older neighborhoods, particularly in wealthier suburbs, new homes are contentious: their style and size may change the character of a neighborhood as well as impact property values. In this report from the Chicago Tribune, Chicago area architects talk about how they try to alter the design and appearance of these new homes in order to fit in with the existing neighborhood:

Anyone who’s driven around the city or its surrounding suburbs likely has seen plenty of examples of homes that just don’t fit. The modern masterpiece in a subdivision full of stately Colonials. The 7,000-square-foot behemoth casting its shadow over a block of tiny post-war ranches.

Size is often one of the most challenging elements of a new-construction project in an established neighborhood, Lindsay said. Those who build typically want to max out on square footage, requiring a variety of design tricks to make structures appear smaller their more modestly sized, older neighbors, such as placing much of the square footage to the home’s exterior…

Some municipalities aren’t willing to gamble that new construction will be in good taste. In Park Ridge, for example, a five-member appearance commission considers architectural style, size, site plans, as well as renderings of roofs, windows and doorways to judge whether a proposed residence will enhance an existing neighborhood. Though most construction projects get the thumbs-up, the commission helps preserve the community’s character by setting some basic guidelines, said City Planner Jon Branham.

But fitting in needn’t mean choosing cookie-cutter designs or doggedly preserving every existing structure on a block. “Some neighborhoods are outdated,” Lindsay said. “You’re not going to build a shabby house next to an existing shabby house just so it will fit it. You want to capture the best features of a neighborhood and not the worst.”

This is often a tricky situation – one architect suggests in the story that a new home is a sort of “public project.”The idea that private homeowners should inform all their neighbors about an upcoming teardown or major renovation seems to be a popular way to attempt to change perceptions.

Although homeowners have some choice over their own property, communities often have some regulations and nearby neighbors can also make their opinions heard. The community’s thoughts on this issue can make a big difference. Some communities are more conservative politically and economically  and this leads to more leeway for property owners. Others are more open to the thoughts of the neighborhood as opposed to the individual homeowners and have more restrictive regulations. All of this can come through a number of methods, including historic districts or preservation areas, but any of these measures often prompt public debate.

Linking crime rates to poor urban design

The possible effects that urban design has on human behavior is an interesting, cross-disciplinary field of study. In the pages of the Jerusalem Post, an architect and town planner calls for better urban design in order to reduce crime rates:

But the crime problem will not be resolved through increased police forces alone. The function of police is to apprehend criminals, but they can in no major way create or foster security by eliminating the conditions in which most crime breeds.
Also obvious to all is that a panicky response to the problem – clearly evident in the government’s actions in the case of Lod – is unsuitable and sure to prove wasteful. Needed is a far deeper understanding of the roots of the problem, including its social, economic and moral aspects, such as inequality. One important factor, not well enough understood, is simply the physical environment.

Architecture can encourage encounter or help prevent it. Certain kinds of buildings and spatial layouts favor criminal activity. Knowing how to identify problem areas in existing environments, understanding why they have become dangerous, then prescribing corrective measures is essential. Knowing how to create safe new environments, at least avoiding the many pitfalls leading to the creation of dangerous spaces, is the other side of the coin. While architecture admittedly operates more in the area of influence than control, it can be an important step toward preventing crime…

With our rapidly expanding population and limited land reserves, urban renewal and the creation of new medium- to high-density, large-scale housing developments, most difficult challenges have become an urgent necessity. The time has come for the existing professional literature on environmental sociology and psychology – practically unknown or systematically ignored here for so many years – to be given the serious attention and respect it deserves.

These are interesting claims: a certain kind of urban design will reduce crime rates and is a better response (or more measured approach) than panicked crack-downs on crime. This sort of argument is not uncommon: New Urbanists make claims about community life based on their planning principles. Several full communities as well as a number of smaller developments have been built with these particular principles that are intended to counter the sterile life of suburban sprawl. Similar claims have also been made in the United States. Not too long ago, in the era of public housing high-rises, it could often be heard that such buildings prompted more crime. The counter-argument was that plenty of wealthy people live in high-rises without much crime, a contrast that could clearly be drawn in cities like Chicago where public housing high-rises and wealthy high-rises were within sight of each other.

In American discussions of this topic, the conversation often turns to Jane Jacob’s The Death and Life of Great American Cities. In this book, Jacob makes an argument for “eyes on the street” in order to ensure a vibrant and safe community. By this, she meant that a certain number of people, resident, shop owners, walkers, and others are on the street throughout the day, signaling to people that the neighborhood is watching.

I would be curious to know: how many urban sociologists today would suggest that particular urban designs or principles are key factors in reducing crime or anti-social behaviors? While architects and planners make this argument (perhaps to illustrate the important social consequences of their work), how much research supports this claim?

Findings about mixed-use communities and crime rates

Mixed-use developments are the rage these days among architects and planners, both in urban and suburban settings. However, there is some contradictory research about whether these developments have higher or lower crime rates. One recent study suggests that crime is reduced once there are enough people on the streets even as there might be a short-term increase in crime before the neighborhood has enough people on the streets. An earlier study had suggested that mixed-use neighborhoods lead to higher levels of crime and therefore, planners should design neighborhoods with features to reduce crime.

This reminds me of Jane Jacob’s ideas of “eyes on the street.” Jacobs suggested this was easier to maintain in mixed-use urban neighborhoods where storekeepers, shoppers, residents and others maintained a steady watch on what happened in the neighborhood.