Freeway operations, surveillance, and communications : 7 reports ; [paper[s] ... presented at the 49th annual meeting, Highway Research Board]
Annual meeting. Highway Research Board ; 49 ; 1970 ; Washington, DC Annual meeting. Highway Research Board ; 49 (Washington, DC) : 1970.
1970
94 S.
Ill., graph. Darst., Kt.
Conference Proceedings
English