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Roadway, intersection and collision data from the state of California are used to compare several methods for identifying sites for safety investigation and prioritizing them efficiently. The methods used were based on the empirical Bayes (EB) procedure, the Level of Service of Safety (LOSS) method, and the California Department of Transportation's (Caltrans') Table C method. Two intersection types and two roadway types were included in the evaluation. Three approaches were used in the evaluation. In addition, the collision frequency of the top ranked sites in 2000-2003 was compared with the collision frequency for the same sites in 2004-2007.

The focus of this report is to develop policy recommendations guidelines, and policies for bicycle and pedestrian use of freeways expressways, tunnels, and toll bridges in California. Results from a survey and literature search are first presented. This is followed by an analysis of collision patterns for bicycles, freeway bicycles, and pedestrian collisions. The safety record of bicycles on bridges and in tunnels is then examined. A multivariate regression analysis of freeways open to bicycles and all freeway collision is described. The report concludes with recommendations addressing issues related to user education, data collection, age restrictions, shoulder geometry and procedures for allowing bicyclists to cross ramps.