Guardrails, median barriers, and sign and light supports 6 reports. - National Research Council (U.S.). Committee on Guardrails, Median Barriers, and Sign, Signal, and Lighting Supports (Washington, D.C. Highway Research Board, National Research Council, 1968)
An investigation of wind loads on roadside signs, by H. E. Ross, Jr., R. M. Olson, and A. M. Gaddis.--Design criteria for break-away sign supports, by T. C. Edwards, T. J. Hirsch, and R. M. Olson.--Impact behavior of luminaire supports, by N. J. Rowan and T. C. Edwards.--An analytical solution of the impact behavior of luminaire support assemblies, by J. E. Martinez.--Dynamic tests of steel box beam and concrete median barriers, by E. F. Nordlin and R. N. Field.--Machine-driving of wooden posts, by C. J. Gatchell.
Papers sponsored by Committee on Guardrail[s], Median Barriers, and Sign, Signal, and Lighting Supports.
Includes bibliographies.
Keywords: Roads -- Guard fences; Traffic signs and signals -- Break-away supports