Guardrails, barriers, and sign supports 5 reports.

Guardrails, barriers, and sign supports 5 reports.

Bibliografiset tiedot
Yhteisötekijät: National Research Council (U.S.). Highway Research Board, National Research Council (U.S.). Highway Research Board. Meeting, National Research Council (U.S.). Highway Research Board. Committee on Guardrails, Median Barriers, and Sign, Signal, and Lighting Supports
Aineistotyyppi: Kirja
Kieli:English
Julkaistu: Washington, D.C. Highway Research Board 1967.
Sarja:Highway research record no. 174.
Publication (National Research Council (U.S.)) no. 1505.
Aiheet:
Roads > Guard fences.
Traffic signs and signals > Break-away supports.