00428    a2200121   4500020001800000022001300018082001600031100002100047245012600068260005500194300003300249650002400282  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