SOUTH DAKOTA: ASAP ANALYTIC STUDY NO. 1 - 1977. AN ANALYSIS OF TOTAL PROJECT IMPACT

The study analyzes the effects of ASAP on alcohol related traffic accidents. Week-long series of hourly observations were created by summing successive two-year segments of traffic accident records. The resulting series were decomposed via a harmonic analysis into frequency components that represented the time paths of the seven daily cycles. The results of baseline/project period comparisons indicated that the South Dakota ASAP caused a small, temporary reduction in alcohol related (AR) crashes, and in light of rather large increases in AR crashes following project termination, probably maintained a dampening effect throughout the project period. The results of the frequency component analysis were supported by visual inspection of changes in the monthly series of selected subsets of injury and fatal crashes that served as proxy measures for alcohol related crashes.

  • Supplemental Notes:
    • Prepared in cooperation with South Dakota Alcohol Safety Action Project, Pierre. See also HS-803 845, TRIS 197709.
  • Corporate Authors:

    University of South Dakota, Vermillion

    Human Factors Laboratory
    Vermillion, SD  USA  57069

    South Dakota Alcohol Safety Action Project

    Pierre, SD  USA  57501

    National Highway Traffic Safety Administration

    Office of Driver and Pedestrian Programs, 1200 New Jersey Avenue, SE
    Washington, DC  USA  20590
  • Authors:
    • Krause, P B
  • Publication Date: 1977-7

Media Info

  • Features: References;
  • Pagination: 60 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00197699
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: HFL-77-5 Final Rpt., HS-803 843
  • Contract Numbers: DOT-HS-6-01416
  • Files: HSL, NTIS, TRIS, USDOT
  • Created Date: Sep 15 1982 12:00AM