Working Paper 5, South Hills Corridor Transit Alternatives Study, Engineering Analysis Prepared for the Port Authority of Allegheny County by De Leuw, Cather and Company, 1976

Subseries 8 contains reports about mass transportation systems in Pittsburgh and other U.S. Cities. Particular reports of interest include those that reference mass transit systems that never came to fruition, including an underground subway system proposed by the Department of City Planning in the 1930s. In the mid-1960s, the Westinghouse Company’s Skybus project was proposed, which was a major mass transit proposal that would have provided continuous service via the Skybus rail.