Roadside hazards, traffic barriers, and safety appurtenances /
National Research Council (U.S.). Transportation Research Board.
- Washington, D.C.: Transportation Research Board. National Research Council, 1980.
- iv, 50 p. : ill., 28 cm.
- Transportation research record ; 769 .
0309031133
Roads--Guard fences.
Roads--Safety measures.
0309031133
Roads--Guard fences.
Roads--Safety measures.