Guardrails, barriers, and sign supports 5 reports.

Guardrails, barriers, and sign supports 5 reports.

ग्रंथसूची विवरण
निगमित लेखकों: 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
स्वरूप: पुस्तक
भाषा:English
प्रकाशित: Washington, D.C. Highway Research Board 1967.
श्रृंखला:Highway research record no. 174.
Publication (National Research Council (U.S.)) no. 1505.
विषय:
Roads > Guard fences.
Traffic signs and signals > Break-away supports.