00563 a2200145 4500020001800000022001300018082001600031100002100047245012600068260005500194300003300249650002400282999001500306952009600321 a9780309117388 a00775614 a363.125 HAR aHarkey, David L. aNCHRP Report 617 Accident Modification Factors for Traffic Engineering and ITS Improvements /cDavid L. Harkey....[et al] aWashington :bTransportation Research Board,c2008 avarious Pagesbill. ;c30 cm aTraffic Engineering c2227d2227 00104070aNITbNITcCEd0000-00-00l0o363.125 HARpNIT-6044 r2017-01-05w2017-01-05yBK