Traffic control devices for highways, work zones, and railroad grade crossings.

Bibliographic Details
Corporate Author:	National Research Council (U.S.). Transportation Research Board. Annual Meeting
Format:	Book
Language:	English
Published:	Washington, D.C. : Transportation Research Board, National Research Council, 1990.
Series:	Transportation research record ; 1254.
Subjects:	Traffic signs and signals. Roads > Design and construction > Safety measures. Roads > Maintenance and repair > Safety measures. Railroad crossings > Safety measures.

Description
Item Description:	Reports prepared for the 69th annual meeting of the Transportation Research Board, Jan. 1990.
Physical Description:	v, 90 pages : illustrations ; 28 cm.
ISBN:	0309050065