Traffic signals and signs 5 reports.

Bibliographic Details
Corporate Authors:	National Research Council (U.S.). Highway Research Board, National Research Council (U.S.). Highway Research Board. Meeting, National Research Council (U.S.). Committee on Operational Effects of Geometrics
Resource Type:	Book
Language:	English
Published:	Washington Highway Research Board D.C. 1970.
Series:	Highway research record no. 325.
Subjects:	Traffic signs and signals. Electronic traffic controls.

Description
Item Description:	Papers presented at the 49th Annual Meeting of the Highway Research Board, January 1970. Sponsored by Committee on Operational Effects of Geometrics and Committee on Traffic Control Devices.
Physical Description:	61 p. ill., charts, plan 25 cm.