Aggressive driving enforcement : evaluation of two demonstration programs
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Aggressive driving enforcement : evaluation of two demonstration programs

Filetype[PDF-455.52 KB]


English
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  • Creators:
    Stuster, Jack, 1947-
  • Subject/TRT Terms:
  • Publication/ Report Number:
    DOT HS 809 707
  • Resource Type:
    Research Paper
  • Geographical Coverage:
  • Corporate Publisher:
    United States. Department of Transportation. National Highway Traffic Safety Administration
  • Abstract:
    This report presents the results of a study conducted to assess the effects of two programs that were implemented to reduce the incidence of aggressive driving. The programs were conducted by the Marion County Traffic Safety Partnership (a consortium of agencies in the vicinity of Indianapolis, Indiana), and the Tucson, Arizona, Police Department. The programs each received grants of $200,000 from National Highway Traffic Safety Administration (NHTSA) to support the special enforcement and public information and education (PI&E) components. Program managers were required, as conditions of the grant, to 1) focus their enforcement efforts on key aggressive driving infractions in carefully-selected zones within their communities; 2) develop and implement PI&E campaigns to publicize the special enforcement efforts; and, 3) provide the data and other information necessary to prepare this evaluation. Program managers were encouraged to consider innovative approaches to both special enforcement and publicity. Samples of vehicle speed, collected unobtrusively in the special enforcement zones, and crash incidence served as the primary measures of program effect. Average speeds declined slightly in Marion County and at a greater rate in Tucson. The total number of crashes in the Marion County special enforcement zones increased by 32 percent; moreover, the Marion County zones experienced a six percent increase in the proportion of all crashes with primary collision factors (PCFs) associated with aggressive driving, despite the extensive publicity and special enforcement efforts. The number of crashes in Tucson?s special enforcement zones increased by ten percent, but the number of crashes with aggressive driving PCFs increased by less than one percent. More important, the proportion of all crashes with target PCFs decreased by eight percent. That is, crash incidence increased overall in Tucson?s zones, but the proportion of those crashes with aggressive driving PCFs declined. The change in proportion of crashes with the target PCFs provides a better measure than crash frequency because it eliminates the effects of changes in traffic volume and other factors that might have contributed to the overall increase in crash incidence. Study results suggest that limited resources might be better spent on officer labor than on publicity, and that focusing enforcement responsibility on a small team assigned full-time to the special enforcement patrols might be more effective than sharing the responsibility among a large number of officers as occasional overtime duty. References, 2 appendices, 10 tables, 7 figures; 55 p.
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