Research problem statements operation and maintenance of transportation facilities.

Research problem statements operation and maintenance of transportation facilities.

Taispeáin gach leagan (3)
Sonraí bibleagrafaíochta
Údar corparáideach: National Research Council (U.S.). Highway Research Board
Formáid: LEABHAR
Teanga:English
Foilsithe / Cruthaithe: Washington, D.C. Highway Research Board, National Research Council [1972]
Sraith:Highway Research Circular no. 131.
Ábhair:
Highway safety > Research.
Traffic Measurement > Research.
Traffic control and operations > Research.