| Abstract: | Recent highly publicized traffic accidents involving older drivers have led to renewed interest in state policies and administrative practices that award and renew drivers’ licenses in the American states. Because the probability of traffic accidents is linked to the medical conditions that are more prevalent among the elderly, and because the number of older drivers is expected to rise over the next several decades, one might expect that this will be an increasingly important policy issue. This article discusses variations that are observed across states in law and administrative practice. A longitudinal analysis of data on crashes involving elderly drivers in fifteen states indicates that crash rates are directly related to the length of the renewal cycle for older drivers and inversely related to the stringency of testing at renewal. It is also likely that states requiring physicians to report conditions that would impair driving will experience lower crash rates. A secondary analysis of policy impacts on the licensing rates is not conclusive, a finding that is attributable to inaccuracies in the reported numbers of licensed drivers. |
