Reduction in yearly number of trolley breaks from peak of 1321 in 1928 with 32,569,906 car-miles operated to only 30 in 1928 with 33, 013,320 car-miles is record of United Railways and Electric Co. of Baltimore; preventive measures include rehabilitation of overhead trolley system plan for inspection and maintenance; consequent decrease in maintenance costs of $30,000 annually.
Trolley wire breaks prevented by alert maintenance
Elec. Ry. Jl
Electric Railway Journal ; 73 , n 13
1929
3 pages
4 Figs.
Aufsatz (Zeitschrift)
Englisch
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