Modeling of Bidirectional Mixed Traffic Stream with Weak Lane Discipline

In contrast to developed countries, traffic streams in developing countries generally consist of mixed traffic with weak or no lane discipline, i.e. vehicles can occupy any lateral position within entire road width. This makes such traffic streams’ behavior complex. Therefore, existing traffic flow models often prove inadequate in simulating such traffic stream. The complexity is further aggravated when traffic movement on such roads is bidirectional. To simulate such bidirectional traffic, development of a car-following model with modifications for bidirectional traffic is necessary. This work is an investigation towards incorporation of the probable modifications in the existing models to simulate the bidirectional traffic realistically. Initially, a unidirectional model is developed which takes into account heterogeneity and ‘no lane-discipline’ nature of such traffic streams. Later, certain rules for overtaking and relevant modifications are added to develop a bidirectional model. The developed model is calibrated and validated for real world traffic data. Several hypothetical scenarios are simulated to evaluate the model capability at microscopic level. This is an initial attempt in developing such a model. It is hoped that the model so developed after thorough improvements and validations will prove a boon for bidirectional traffic planners in the future.

• Supplemental Notes:
  • This paper was sponsored by TRB committee ABE90 Transportation in the Developing Countries.
• Corporate Authors:

  Transportation Research Board

  500 Fifth Street, NW
  Washington, DC  United States  20001
• Authors:
  • Budhkar, Anju Kishor
  • Maurya, Akhilesh Kumar
• 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: Car following; Developing countries; Passing; Traffic data; Traffic flow; Traffic lanes; Transportation planning; Vehicle mix
• Subject Areas: Highways; Operations and Traffic Management; Planning and Forecasting; I72: Traffic and Transport Planning; I73: Traffic Control;

Filing Info

• Accession Number: 01515524
• Record Type: Publication
• Report/Paper Numbers: 14-4503
• Files: TRIS, TRB, ATRI
• Created Date: Feb 24 2014 8:43AM