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The effectiveness of automatic protection in reducing accident frequency and severity at public grade crossings in California. /
California Public Utilities Commission, Transportation Division, Railroad Operations and Safety Branch, Traffic Engineering Section.

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Corporate Author
California Public Utilities Commission. Transportation Division.
Related Names
United States. Federal Highway Administration.
Language(s)
English
Published
Washington : U.S. Dept. of Transportation, Federal Highway Administration, 1975.
Subjects
Railroad crossings.
Railroad accidents.
Railroad crossings > California.
Railroad accidents > California.
California.
Note
Reprint of the 1974 ed. published by California Public Utilities Commission.
Also issued online.
Physical Description
iii, 196 pages : illustrations ; 28 cm
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