"America continues to spend billions planning highways, installing traffic systems, and building garages, but devotes too little attention to pedestrian movement after the vehicles have arrived. We need to do more to make our cities friendlier to the automobile's occupants. This requires more than redecorating a few downtown arteries. It means creating entire networks that encourage interaction among shopping facilities, convention centers, hotels, office buildings, and all the other components of a healthy business district. The success of the 16th Street Mall in Denver and Central City District in Philadelphia demonstrates that this is an achievable goal."
The American City: What Works, What Doesn't; Second Edition, Alexander Garvin