Roadside safety features 1991 /
National Research Council (U.S.). Transportation Research Board.
- Washington, D.C. : Transportation Research Board, National Research Council, 1991.
- 55 p. : ill.
- Transportation research record ; 1302 .
0309051096
Roads--Guard fences--Testing.
Roads--Safety measures.
0309051096
Roads--Guard fences--Testing.
Roads--Safety measures.