000 00491nam a2200145 a 4500
005 20220228110633.0
035 _aF8901000709732
084 _aTRB REC 514 1974
245 _aTraffic operations / Transportation Research Board.
260 _aWashington, D.C. : TRB
300 _a55 p.
440 _aRecord ; 514 / Transportation Research Board
690 _aCarreteras - Potencial de seguridad - Determinación.
710 _aNational Research Council. Transportation Research Board (E-.U.A.)
999 _c59555
_d59555