This issue contains 14 papers concerned with highway safety data, analysis, and evaluation. Specific topics discussed include the following: publication bias in road safety evaluation; accidents and accessibility; collecting data on animal carcass removal from roadways using personal digital assistants; genetic programming for investigating urban arterial design factors contributing to crashes; U.S. Road Assessment Program star rating protocol; automated analysis of vehicle interactions and collisions; proposed safety index based on driver risk-taking; effect of street pattern on road safety; near crashes as crash surrogate for naturalistic driving studies; endogeneity in models of severity of traffic crash injuries; predicting single-vehicle fatal crashes for two-lane rural highways; identifying hot spots; relationship between calculated conflicts in a microsimulation model and the number of crashes; and comparison of the application of baseline models estimated with accident-modification factors and models with covariates.