Okładka

Research problem statements operation and maintenance of transportation facilities.

Opis bibliograficzny
Korporacja: National Research Council (U.S.). Highway Research Board
Format: Książka
Język:angielski
Wydane: Washington, D.C. Highway Research Board, National Research Council [1971]
Seria:Highway Research Circular no. 129.
Hasła przedmiotowe:
Highway safety > Research.
Traffic Measurement > Research.
Traffic control and operations > Research.