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The paper examines the application of six vehicle safety rating systems to a common crash database, for the purpose of making a comparison of the rating results produced by each system and to develop an understanding of the differences which emerge. The rating results are compared based on rank order of crashworthiness of vehicle models, and relationships between each pair of results. Finally, the results with their respective confidence limits are used to classify each vehicle model as having inferior, not defined or superior crashworthiness, and the classification is used to compare the relative discrimination of the methods.

This paper describes an empirical comparison of seven vehicle aggressivity rating methods in order to identify the most satisfactory vehicle aggressivity "rating' system. Vehicles were distinguished by make and model, and the aggressivity of each model was estimated from data on real two-vehicle crashes. For comparison purposes, two common crash databases were used for estimation of ratings by each method: Police-reported tow-away crash data from three US states, and accident compensation claims from Finland. New methods of vehicle aggressivity rating were also proposed and tested.