A discussion of the question adapted to Philadelphia, with map showing the half hour limit for pedestrians, street cars, and elevated railroads, the respective areas being 8, 18 and 72 square miles, with supplement on Growth of Cities, by L. M. Haupt.
Rapid transit
Proc. Eng. Club, Phila
Aufsatz (Zeitschrift)
Englisch
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Rapid Transit Review - Transit News
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