Cover image for Experimental design for evaluating the safety benefits of railroad advance warning signs
Title:
Experimental design for evaluating the safety benefits of railroad advance warning signs
Author:
Berg, William D.
Personal Author:
Publication Information:
Washington : Federal Highway Administration, Offices of Research & Development ; Springfield, Va. : National Technical Information Service, 1979.
Physical Description:
v, 58 pages : illustrations ; 28 cm.
Language:
English
Format :
Book