Meier, Kenneth J.; Morgan, David R. - In: Review of Policy Research 1 (1981) 1, pp. 157-167
An interrupted time-series design is used to analyze the impact of the 55 mph speed limit on U.S. traffic fatalities over the period 1950 to 1980. In addition to speed such potential effects on highway fatalities as safety improvements, decreased speed dispersion, and decreased travel are...