Guardrails, barriers, and sign supports 5 reports.

Guardrails, barriers, and sign supports 5 reports.

Xehetasun bibliografikoak
Egile korporatiboa: 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
Formatua: Liburua
Hizkuntza:English
Argitaratua: Washington, D.C. Highway Research Board 1967.
Saila:Highway research record no. 174.
Publication (National Research Council (U.S.)) no. 1505.
Gaiak:
Roads > Guard fences.
Traffic signs and signals > Break-away supports.