American urban planner (b. May 2, 1910, Philadelphia, Pa.—d. Oct. 14, 2005, Philadelphia), revitalized Philadelphia as executive director of the City Planning Commission (1949–70). During his tenure he oversaw the development of Penn Center, a downtown project of office buildings, shops, and hotels. He designed plans for the development of Market East, Penn’s Landing, Society Hill, and Independence Mall. His book Design of Cities (1967) remained a standard text for aspiring urban planners.
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