EVALUATION OF BOISE SELECTIVE TRAFFIC ENFORCEMENT PROJECT

Boise, Idaho, implemented a Selective Traffic Enforcement Program (STEP) in October 1979. Before that time, the city typically had one of the worst accident rates in the state. The objective of the program was to reduce the number of injury accidents occurring in Boise. The program included both enforcement and a media information campaign to deter accidents. An impact evaluation was performed to determine what reductions had occurred during the first 22 months of implementation. A multivariate time series design was used, and a comparison group was selected. The Box-Jenkins technique was used. The analysis identified a statistically significant reduction of 14 injury accidents/month for Boise. This represents a 17 percent reduction from the base period. No significant reduction occurred in the comparison group. An estimated $1,600,000 in accident costs was avoided, and the total program cost was $788,000. Both traditional enforcement and media influence were determined to be essential elements of this successful program. Improved coordination and communication with other local agencies are also believed to have contributed significantly to the program. (Author)

• Record URL:
  • http://onlinepubs.trb.org/Onlinepubs/trr/1983/910/910-011.pdf
• Record URL:
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• Supplemental Notes:
  • Publication of this paper sponsored by Committee on Traffic Law Enforcement. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved
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  Transportation Research Board

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• Authors:
  • Sali, Gregory J
• Publication Date: 1983

Media Info

• Media Type: Print
• Features: Figures; References; Tables;
• Pagination: pp 68-74
• Monograph Title: TRAFFIC RECORDS, ACCIDENT ANALYSIS, AND TRAFFIC LAW ENFORCEMENT
• Serial:
  • Transportation Research Record
  • Issue Number: 910
  • Publisher: Transportation Research Board
  • ISSN: 0361-1981

Subject/Index Terms

• TRT Terms: Communications; Coordination; Crash rates; Multivariate analysis; Publicity; Safety; Time series; Traffic law enforcement; Traffic safety; Traffic safety education
• Geographic Terms: Boise (Idaho)
• Old TRIS Terms: Selective traffic enforcement program
• Subject Areas: Data and Information Technology; Education and Training; Highways; Safety and Human Factors; I83: Accidents and the Human Factor;

Filing Info

• Accession Number: 00379912
• Record Type: Publication
• ISBN: 030903552X
• Report/Paper Numbers: HS-036 473
• Files: HSL, TRIS, TRB
• Created Date: Feb 29 1984 12:00AM