ACCIDENT ANALYSIS FOR URBAN FREEWAYS. VOLUME I. TECHNICAL REPORT. FINAL REPORT

A process was developed in this study to aid the District personnel of the Texas State Department of Highways and Public Transportation (SDHPT) in their tasks of: identifying high accident locations on urban Interstate highways and urban non-Interstate freeways; analyzing accident causative factors associated with these high accident sites; and determining and evaluating appropriate remedial measures at these sites. A conceptual approach was first developed, which was then revised and improved based upon experience gained from field tests of 10 sites selected from three participating SDHPT Districts. It was found that, in order for the process to be useful, it is necessary to automate the process to the extent possible. An existing mainframe computer program, known as WINDOW, was modified to identify high accident locations and to create an analysis file for use with a Microcomputer Accident Analysis Program (MAAP). The MAAP program identifies accident characteristics at the high accident locations that are overrepresented when compared to the average for similar highway type in the same county. The program also has the capability to produce various tables and reports for detailed evaluation of the high accident locations. The MAAP program was field tested with 30 sites from the three participating Districts.

• Supplemental Notes:
  • Research study title: Analysis of Accident Rates Along Urban Freeways to Determine Where and When Added Enforcement or Other Remedial Measures Are Required.
• Corporate Authors:

  Texas Transportation Institute

  Texas A&M University System, 1600 E Lamar Boulevard
  Arlington, TX  United States  76011

  Texas State Department of Highways & Public Transportation

  Transportation Planning Division, P.O. Box 5051
  Austin, TX  United States  78763

  Federal Highway Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • Mak, K K
  • DeLucia, B H
  • Chira-Chavala, T
  • Brackett, R Q
• Publication Date: 1988-6

Media Info

• Features: Appendices; Figures; Tables;
• Pagination: 142 p.

Subject/Index Terms

• TRT Terms: Computer programs; Countermeasures; Crash analysis; Crash causes; Data analysis; Evaluation; Field tests; Freeways; High risk locations; Mathematical analysis; Microcomputers; Traffic crashes; Urban areas
• Old TRIS Terms: Urban freeways
• Subject Areas: Highways; Safety and Human Factors; I82: Accidents and Transport Infrastructure;

Filing Info

• Accession Number: 00470931
• Record Type: Publication
• Report/Paper Numbers: FHWA/TX-88/399-1F, Res Rept 399-1F, TTI: 2-18-84-399-1F
• Contract Numbers: Study 2-18-84-399
• Files: TRIS, USDOT, STATEDOT
• Created Date: Aug 31 1988 12:00AM