Made for Walking (Book) Density and Neighborhood Form
“In this era of high energy prices, economic uncertainty, and demographic change, an increasing number of Americans are showing an interest in urban living as an alternative to the traditional automobile-dependent suburb. Many people are also concerned about reducing their annual vehicle miles traveled (VMT) as a way to lower greenhouse gas emissions affecting climate change. But providing transportation options is complex and demands a shift in land use patterns and the way we locate and shape future development.
Density is often defined in terms of population per square mile, but such a crude measure makes it difficult to understand the relationship between density and city life. We need to think about urban density by including the density of jobs, schools, and services such as retail, transit, and recreational facilities. Fitting more amenities into a neighborhood within a spatial pattern that invites walking will create the type of built environment that offers real transportation options.
Landscape architect and urban designer Julie Campoli challenges our current notions of space and distance and helps us learn to appreciate and cultivate proximity. In this book, developed as a follow-up to Visualizing Density (2007, co-authored with aerial photographer Alex S. MacLean), she illustrates urban neighborhoods throughout North America with hundreds of street-level photographs.
Researchers delving into the question of how urban form affects travel behavior identify specific characteristics of place that boost walking and transit use while reducing VMT. In the 1990s some pinpointed diversity (of land uses), density, and design as the key elements of the built environment that, in specific spatial patterns, enable alternative transportation. After a decade of successive studies on the topic, these “three Ds” were joined by two others deemed equally important—distance to transit and destination accessibility—and together they are now known as the “five Ds.” Added to the list is another key player: parking.”
Campoli, Julie. Made for Walking December 2012.