Traffic Microsimulation Approach to Estimate Safety at Unsignalized Intersections

Traffic simulation modeling has been applied to many transportation planning and traffic engineering situations. The expansion of these models to map the safety of traffic elements allows the impact of safety factors to be studied in a systematic, rigorous and transparent fashion. This paper presents an application of a simulation model to the study the safety performance of a T-intersection. It outlines the data collection and model calibration, validation and application. It highlights the need to measure probabilistic gap-acceptance functionality and composite car-following in order to accurately represent safety critical aspects of road-user behavior. It concludes that this type of safety modeling has considerable potential and important implications for transport planning and traffic engineering work in the future.


  • English

Media Info

  • Media Type: DVD
  • Features: Figures; References; Tables;
  • Pagination: 19p
  • Monograph Title: TRB 89th Annual Meeting Compendium of Papers DVD

Subject/Index Terms

Filing Info

  • Accession Number: 01153354
  • Record Type: Publication
  • Report/Paper Numbers: 10-0683
  • Files: TRIS, TRB
  • Created Date: Jan 25 2010 10:19AM