Traffic control devices, visibility, and rail-highway grade crossings 2002.

Bibliographic Details
Corporate Author:	National Research Council (U.S.). Transportation Research Board
Format:	Book
Language:	English
Published:	Washington, D.C. : Transporation Research Board, 2002.
Series:	Transportation research record ; no. 1801.
Subjects:	Traffic signs and signals. Roads > Visibility. Highway-railroad grade crossings > Safety measures. Railroad crossings > Safety measures. Traffic safety. Roads > Design and construction > Safety measures.

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