ACCIDENT BLACKSPOTS AND THE BIVARIATE NEGATIVE BINOMIAL

This paper considers a simple adaptation of the Bates-Neyman model to accident blackspots and shows how estimators of the efficacy of treatment programmes may be devised. It is shown how the method of maximum likelihood in connection with a bivariate negative binomial distribution may be used to separate treatment effects from regression to the mean effects when analysing data giving the frequency of accidents in two time periods for a number of sites on a road network. The method is illustrated using data from the Lothian Road Accident Statistics System (LORASS).

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/00410683
• Corporate Authors:

  Printerhall Limited

  29 Newmart Street
  London W1P 3PE,   England 
• Authors:
  • Senn, S J
  • Collie, G S
• Publication Date: 1988-3

Media Info

• Features: References; Tables;
• Pagination: p. 168-169
• Serial:
  • Traffic Engineering & Control
  • Volume: 29
  • Issue Number: 3
  • Publisher: Hemming Group, Limited
  • ISSN: 0041-0683
  • Serial URL: http://www.tecmagazine.com/

Subject/Index Terms

• TRT Terms: Crash rates; High risk locations; Measures of effectiveness; Traffic crashes
• Uncontrolled Terms: Effectiveness; Treatment
• Subject Areas: Design; Highways; Planning and Forecasting; Safety and Human Factors; I21: Planning of Transport Infrastructure;

Filing Info

• Accession Number: 00468218
• Record Type: Publication
• Files: TRIS, ATRI
• Created Date: Apr 30 1988 12:00AM