An experimental motor vehicle inspection program was conducted by the Michigan State Police in three counties. Strengthened follow-up procedures included mandatory repair of hazardous defects and a computerized monitoring system of the voluntary repair of non-hazardous defects. Independent measurements were collected on vehicle condition, through a random sample of 6,000 vehicles, which were given a full inspection. An additional 43,000 vehicles were observed for lighting system outages, and 5,500 drivers were interviewed. For the six-month observation period, a modest reduction in vehicle defects, between five percent and 10 percent was obtained in the area with the most inspection activity. Driver interviews showed no decrease in public acceptance of the program, despite substantially increased police effort. The follow-up procedures were found quite effective with approximately 75 percent of the vehicles failing inspection being subsequently repaired. /HRIS/

  • Corporate Authors:

    Highway Safety Research Institute

    Huron Parkway and Baxter Road
    Ann Arbor, MI  United States  48109
  • Authors:
    • Creswell Jr, J S
  • Publication Date: 1974-1

Media Info

  • Pagination: p. 1-9
  • Serial:
    • HIT Lab Reports
    • Volume: 4
    • Issue Number: 5
    • Publisher: University of Michigan Transportation Research Institute

Subject/Index Terms

Filing Info

  • Accession Number: 00263200
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Nov 12 1974 12:00AM