Abstract
Based on the methodology described in this Research Note, total vehicle miles of travel (VMT) for cars and light trucks as reported by the Federal Highway Administration (FHWA) has been redistributed. This revision affects the fatality and injury rates based on VMT for these vehicle types back to 1975. No changes have been made to VMT for any other vehicle types. This method for revising VMT may not be applicable in future years. FHWA and the National Highway Traffic Safety Administration (NHTSA) are working together to improve the registered vehicle and VMT data that are used by both agencies. As more data become available, the revision method will be re-evaluated.
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