Columbia subject headings:
City traffic--Planning.
Pedestrian areas--Planning.
Pedestrian traffic flow--Planning.
Pedestrians.
Streets--Planning.
Harvard subject headings:
City traffic--Planning.
Pedestrian areas--Planning.
Pedestrian traffic flow--Planning.
Pedestrians
Streets--Planning.
Princeton subject headings:
City traffic--Planning.
Pedestrian areas--Planning.
Pedestrian traffic flow--Planning.
Pedestrians.
Streets--Planning.