Continuing project to synthesize information on highway problems.

"A staff digest of the progress and status of NCHRP Project 20-5, "Synthesis of information related to highway problems," for which the Transportation Research Board is the agency conducting the research."

Sonraí bibleagrafaíochta
Údair chorparáideacha: National Cooperative Highway Research Program, National Research Council (U.S.). Transportation Research Board
Formáid: LEABHAR
Teanga:English
Foilsithe / Cruthaithe: Washington, D.C. Transportation Research Board [1985]
Sraith:Research results digest (National Cooperative Highway Research Program) no. 148.
Ábhair: