Revision of manual; drawings showing general requirements for installations of automatic gates; method of classifying grade crossings with respect to hazards; requisites for floodlighting of railroad-highway grade crossings; lamps on manual and automatic crossing gates; requisites for automatic crossing gates. (See also - discussion p 726-9)
Report of committee 9 -- Highways
Am Ry Eng Assn -- Bul
1939
513 pages
Article (Journal)
English
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Report of committee 9 -- Highways
Engineering Index Backfile | 1945
Report of committee 9 -- Highways
Engineering Index Backfile | 1940
Report of committee IX -- Highways
Engineering Index Backfile | 1936
Report of committee IX -- Highways
Engineering Index Backfile | 1935
Report of committee 9 -- Highways
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