Continuing project to synthesize information on highway problems.

Continuing project to synthesize information on highway problems.

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"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."

Bibliografiset tiedot
Yhteisötekijät: National Cooperative Highway Research Program, National Research Council (U.S.). Transportation Research Board
Aineistotyyppi: Kirja
Kieli:English
Julkaistu: Washington, D.C. Transportation Research Board [1983]..
Sarja:Research results digest (National Cooperative Highway Research Program) no. 142.
Aiheet:
Highway research > United States.