Modeling the Speed Choice Behaviors of Drivers on Mountainous Roads with Complicated Shapes

Roadway geometric features and pavement conditions can significantly affect driver behavior, particularly with regard to the vehicle speed. This paper presents the development of a speed decision-making algorithm under the constraints of complicated shape curves and pavement conditions so that a passenger car can travel on complicated roads in mountainous areas without driver input. On the basis of driving experiments and observation data of the spot speed, the relationship between geometric features of horizontal curves and favorable driving speed was analyzed, and speed control models were established for driving on curves, curve approaches/departures, and tangents. The developed models can be used to calculate the driver’s desired speed on any roadway with a defined geometry. The model considers the driver’s behavior type and vehicle’s dynamic properties. This paper presents the results of simulation experiments on roads with small curve radii and narrow widths. The developed algorithms may be used for assisted or even automated driving. Even under automated driving, the speed control and speed change based on the developed algorithms felt natural. The model makes better use of the available friction of the pavement to provide safe and expedient travel.

• Supplemental Notes:
  • This paper was sponsored by TRB committee AHB30 Vehicle-Highway Automation.
• Corporate Authors:

  Transportation Research Board

  500 Fifth Street, NW
  Washington, DC  United States  20001
• Authors:
  • Shao, Yiming
  • Xu, Jin
  • Li, BenWang
  • Yang, Kui
• Conference:
  • Transportation Research Board 93rd Annual Meeting
  • Location: Washington DC
  • Date: 2014-1-12 to 2014-1-16
• Date: 2014

Language

• English

Media Info

• Media Type: Digital/other
• Features: Figures; References; Tables;
• Pagination: 15p
• Monograph Title: TRB 93rd Annual Meeting Compendium of Papers

Subject/Index Terms

• TRT Terms: Algorithms; Automobile drivers; Behavior; Decision making; Driving simulators; Friction; Geometric design; Highway curves; Highway design; Highway safety; Mountain roads; Passenger vehicles; Speed; Surface course (Pavements)
• Subject Areas: Highways; Safety and Human Factors; I82: Accidents and Transport Infrastructure; I83: Accidents and the Human Factor;

Filing Info

• Accession Number: 01520345
• Record Type: Publication
• Report/Paper Numbers: 14-0860
• Files: TRIS, TRB, ATRI
• Created Date: Mar 27 2014 3:38PM