Effects of Road Surface Conditions on Driver Behaviors in Dilemma Zone

This paper describes a study of the effects of road surface conditions on automobile driver behaviors. The authors report data collected using a driving simulator that simulated a dilemma zone, defined as the zone in which vehicles are not able to make a stop at a stop line safely nor can they make it through the intersection without violating the red light. They found that the driver’s decision in the dilemma zone is heavily influenced by the road-surface conditions and vehicle’s distance to the stop line. Under the same road surface condition there is no clear difference in vehicle approach speeds between those that stop for the signal and those that do not stop. The authors conclude that insight gained from this study can be applied to improve the existing dilemma-free control method used in Japan. The dilemma-free control method adjusts the switching time instant of traffic signals from green to amber to reduce the number of vehicles in the dilemma zones. This method determines the time to end the green interval based on the detection of no vehicles in the zones.


  • English

Media Info

  • Media Type: CD-ROM
  • Features: Figures; Photos; References;
  • Pagination: 6p
  • Monograph Title: ITS Connections: Saving Time. Saving Lives

Subject/Index Terms

Filing Info

  • Accession Number: 01142026
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Oct 5 2009 7:07AM