Track construction; use wide base rail; shop buildings; power supply, conversion and distribution; signals and automatic stop; rolling stock; door control; couplers, trucks, motors and motor control.
Philadelphia's new subway
Elec. Traction
Electric Traction ; 24 , n 3
1928
6 pages
8 Figs.
Aufsatz (Zeitschrift)
Englisch
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The broad street subway and Philadelphia's projected high-speed transportation system
Engineering Index Backfile | 1930
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Pedestrians dominate Philadelphia's traffic problem
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Philadelphia's EL Gets Major Facelift
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