Roadside safety issues revisited.

Sonraí bibleagrafaíochta
Údar corparáideach:	National Research Council (U.S.). Transportation Research Board
Formáid:	LEABHAR
Teanga:	English
Foilsithe / Cruthaithe:	[Washington, D.C.] Transportation Research Board, National Research Council [1996]
Sraith:	Transportation Research Circular Number 453
Ábhair:	Roads > Safety measures. Roads > Guard fences. Roads > Crash cushions. Traffic safety.