Practice in United States, Canada, and South America. Legal and administrative regulation of crossings, warning notices and signals, crossing gates, cost of installation and maintenance of several automatic devices, abolition of grade crossings.
Level crossings (Public roads)
Int. Ry. Congress Assn. -- Bul
International Railway Congress Association -- Bulletin ; 7 , n 1 ; p 13-29
1925
17 pages
7 Figs.
Aufsatz (Zeitschrift)
Englisch
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