Tuesday, September 15, 2009

Can urban design deter crime?

Alfredo Triff

"Crime" & "Miami" are in the news again. Coincidentally, fighting crime through design has become fashionable. Even Wikipedia has an entry on the subject!

Are there urban factors that may reduce or stimulate crime? Can crime be reduced with well-thought-out design? There are two main approaches to crime prevention: the so-called "dispositional" and the "situational." The first looks at the criminal's motivations and calls for education, moral guidance, sanctions, and/or penalties. The situational approach identifies the offender's physical context. Once he or she has made the initial decision to commit a crime, certain techniques can be employed to make the commission of that crime in that particular place more difficult. The consensus among experts is that design can indeed reduce the opportunities for people to commit crimes, though design alone will not solve the problem.

Let's do a bit of history. Environmental crime prevention appeared as a field of study in the Sixties with Jane Jacobs's well-known The Death and Life of Great American Cities and Elizabeth Wood's Social Aspects of Housing in Urban Development. Then a surge of interest in the possibilities of manipulating the built environment to prevent delinquency emerged in the Seventies with C. Ray Jeffery's Crime Prevention Through Environmental Design and Oscar Newman's Defensible Space.

Jacobs stressed the need for activity to promote surveillance between "private" and "public" spaces. In her conception, the safety of these spaces would not be enforced by police but by the voluntary control of people becoming "active participants." Newman built on some of Jacobs's ideas by establishing a credible link between urban design and crime rates (he suggested that high-rise buildings' inner elements like elevators, fire escapes, roofs, and corridors -isolated from public view- had much higher crime rates than low-rise buildings).

Newman proposed a restructuring of urban environments by a "community" of people sharing a "common terrain" (by the way, this "topographic" vision later proved to be a limiting notion of community). In his analysis of the relationship between design and crime in public housing, Newman came up with three crucial factors: territoriality, natural surveillance, and image/milieu.

Territoriality assumes that people need to mark out and defend their territories. Good design encourages people to express these urges: They would defend their space against intrusion by outsiders. For example, a well-designed housing project would make clear which spaces belonged to whom -that is, some would be completely private, some could be shared with permission from the owner, and others would be public.  Newman's natural surveillance calls for residents to observe and monitor public and semipublic spaces in their environment and be aware of those who don't belong. Thus residents develop a sort of territorial instinct about their housing project and feel responsible for its safety.

This method is referred to as a "management" or "regulatory" approach, as opposed to the "keep off premises" tactic in our upscale and middle-class communities, in which strangers are deterred from entering but residents end up feeling "trapped" in their fortresses, particularly the young, who after school are isolated in a world of TV, video games, and idle private activity. In America's poorest ghettos, citizens don't always have the means and/or power to enforce the law when it's broken, as Newman and Jacobs had it. In the inner cities, when people call for help, law enforcement's response is slow or nonexistent. In addition Newman's emphasis on territorial definition may promote social segregation (auto-oriented low density suburban development, Colorado).

Recent developments in urban planning endorse a more open interaction among the city's different players (this is what architect Zaha Hadid calls "porous" design). Bill Hillier, a professor of architecture and urban morphology at the University of London, defends a more fluid and egalitarian social interaction in his 1988 book Against Enclosure, in which he engages Jacobs and Newman by reinterpreting "surveillance" as people moving through spaces. In Hillier's view, activity and safety depend on continuous occupation and use. The more the natural presence of people and traffic is eliminated, the greater the danger. The idea makes sense. Why should one exclude all strangers from a district, regardless of whether they're peaceful or predatory? Fresh research shows that burglary rates are higher in less integrated neighborhoods than in more integrated areas. Hillier argues that Newman and Jacobs's situational, and more "restrictive," approaches could only redirect or redistribute crime.

According to an important 1998 report entitled Opportunity Makes the Thief by Marcus Felson and Ronald V. Clarke, crime displacement may take different forms: It can move from one location to another or to different times during the day; it can shift to a different target or be substituted by another kind of crime. Our local increase in urban crime has social, political, and economic causes. For one thing, Miami's racially and ethnically segregated populations are physically, economically, and politically disenfranchised, facts that become significant in the analysis of urban crime. Which brings me to a broader idea of community, one that encompasses more than just something defined by physical territory (below a Detroit slum).

Let's stop seeing crime solely as a subjective and isolated matter. Our civic leaders and planners need to understand that a factor in our crisis is this: We don't see ourselves as part of a greater community with commonly held aspirations. If we did, the general distribution of crime would substantially decrease. People don't pilfer when they believe they have an ownership interest.

Howell S. Baum, in his book The Organization of Hope: Communities Planning Themselves, makes the point that people join a community "when they have faith in it as something greater than the routines of everyday life ... something justifying a group loyalty that may conflict with but will take priority over mundane responsibilities." What Baum identifies as "faith" can be seen as a common civic project that unites Miami's different ethnic groups. Miami is a very complex city. We come from many different ethnic backgrounds and keep looking back home. But historic and ethnic concerns, important as they may be, should not detract from seeing ourselves within a bigger project here and now.

A community's identity is definitely more than its physical territory, more than its race, language, and traditions. Our leaders should take this piece of information into their crime-prevention planning. The broader question is: What is there in Miami that can bring together our best aspirations? In searching for these common objectives, we will have to look beyond our daily mundane affairs. Rising above narrow self-interest presents a major challenge, but the effort will be worthwhile.

Of course, working out better strategies will not completely eradicate crime. This may, however, reduce it significantly and -in the process- teach us how better to live together.


Anonymous said...

Very interesting post professor Triff.

Cecilia Ariastan

Anonymous said...

Its the same story in Miami in Liberty City we were reduced our neighborhood destroyed. The power structure had an idea of what was better for the city, but it turned a disester. Sad but true.

B. Williams

miamibourbaki said...

Thanks Cecilia.

It's the same story in Miami in Liberty City we were reduced our neighborhood destroyed.

True, Ben. Old ideas that brought forth more pain than modernization.

Anonymous said...

Should I know. I live in Allapattah IT MEANS ALLIGATOR.

Anonymous said...

Hey i just came here to let you know about a service i offer. I offer cheap backlinks that can help you website rank significantly better on Google. Traffic is everything and to get decent traffic you need to rank well in the search engines. My service can help provide that, check out my site http://hellomotow.net/backlinks