Can urban design improve the environment? If communities could bedesigned to reduce auto- mobile use, then yes. But can urban designinfluence travel? Surprisingly perhaps, the effects of any specificneighborhood feature on travel behavior at the margin are all butunknown. The policy significance of this issue is reflected in theswelling popularity of the 'new urbanism' and other planningstrategies employing land use tools to mitigate the environmentalimpacts of metropolitan development.
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