A Passing Gap Acceptance Model for Two-lane Rural Highways

Passing maneuvers on rural 2-lane highways significantly affect highway capacity, safety, and level of service. This article presents an analysis of data on drivers’ passing decisions on 2-lane rural highways collected with an interactive driving simulator. Measurements of the speeds and positions of all vehicles in several different scenarios were collected and processed to generate observations of gap acceptance behavior. Participants also responded to a questionnaire that collected information on their sociodemographic and driving style characteristics. This data was utilized to develop a model that explains the decision whether to pass or not, using variables that capture the impact of the road geometry, traffic conditions, and drivers’ characteristics. It was found that while traffic related variables had the most important effect on passing decisions, factors related to geometric design and driver characteristics also had a significant effect on these decisions.


  • English

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 01152137
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Feb 3 2010 1:12PM