5MICHAEL P G, LEEMING F C, DWYER W O. Headway on urban streets: Observational data and an intervention to decrease tailgating [ J ]. Transportation Research Part F, 2000,34 (3) : 55 -64.
6SAYED T , ZEIN S. Traffic conflict standards for intersections [ J ]. Transportation Planning and Technol,1999,22 : 309 - 323.
7LUK J Y K, CHUNG E C S, SIN F Y C. Characterization of incidents on an urban arterial road[J]. Journal of Advanced Transportation, 2000,35 ( 1 ) : 67 - 92.
8BEN-AKIVA M, CEDER A, CHENG L-h, et al. A methodology for estimating traffic safety improvements at intersections [ J ]. Journal of Advanced Transportation,1999,33(3) : 273 -297.