Guardrails, barriers, and sign supports 5 reports.

Guardrails, barriers, and sign supports 5 reports.

التفاصيل البيبلوغرافية
مؤلفون مشاركون: 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
التنسيق: كتاب
اللغة:English
منشور في: Washington, D.C. Highway Research Board 1967.
سلاسل:Highway research record no. 174.
Publication (National Research Council (U.S.)) no. 1505.
الموضوعات:
Roads > Guard fences.
Traffic signs and signals > Break-away supports.