Description
Item Description:"Research sponsored by the American Association of State Highway and Transportation Officials in cooperation with the Federal Highway Administration."
"September 1987."
"Project 20-5 FY 1983 (Topic 15-05)"--Title page verso.
Physical Description:99 pages : illustrations ; 28 cm.
Bibliography:Bibliography: pages 61-63.
ISBN:0309044081 (pbk.) :
ISSN:0547-5570 ;