Investigating Effects of Asphalt Pavement Conditions on Traffic Accidents in Tennessee Based on the Pavement Management System (PMS)

Pavement maintenance is essential for ensuring good riding quality and avoiding traffic congestion, air pollution, and accidents. Improving road safety is one of the most important objectives for pavement management systems. This study utilized the Tennessee Pavement Management System (PMS) and Accident History Database (AHD) to investigate the relationship between accident frequency and pavement distress variables. Focusing on 4 urban interstates with asphalt pavements, divided median types, and 55 mph speed limits, 21 Negative Binomial Regression models were developed to predict various types of traffic accident frequencies based on different pavement condition variables, including rut depth (RD), International Roughness Index (IRI), and Present Serviceability Index (PSI). Modeling results indicated that the RD models did not perform well, except for predicting accidents at night and accidents under rain weather conditions; whereas, IRI and PSI were always significant prediction variables in all types of accident models. Comparing the models goodness-of-fit results, it was found that the PSI models had a better performance in crash frequency prediction than the RD models and IRI models. This study suggests that the PSI accident prediction models should be considered as a comprehensive approach to integrate the highway safety factors into the PMS.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/5121625
• Authors:
  • Chan, Chun Yip
  • Huang, Baoshan
  • Yan, Xuedong
  • Richards, Stephen H
• Publication Date: 2010-7

Language

• English

Media Info

• Media Type: Print
• Features: Figures; Photos; References; Tables;
• Pagination: pp 150-161
• Serial:
  • Journal of Advanced Transportation
  • Volume: 44
  • Issue Number: 3
  • Publisher: John Wiley & Sons, Incorporated
  • ISSN: 0197-6729
  • EISSN: 2042-3195
  • Serial URL: http://onlinelibrary.wiley.com/journal/10.1002/(ISSN)2042-3195
• Publication flags:

  Open Access (libre)

Subject/Index Terms

• TRT Terms: Asphalt pavements; Crash causes; Highway safety; Pavement distress; Pavement management systems; Pavement performance; Ruts (Pavements); Surface course (Pavements); Traffic crashes
• Geographic Terms: Tennessee
• Subject Areas: Highways; Pavements; Safety and Human Factors; I23: Properties of Road Surfaces; I82: Accidents and Transport Infrastructure;

Filing Info

• Accession Number: 01165234
• Record Type: Publication
• Files: TRIS
• Created Date: Aug 19 2010 11:16AM