Modeling Vehicle Group Gap Acceptance At Uncontrolled T-intersections In Indian Traffic
In this paper, the authors are analyzing and modeling the behavior of right turning vehicles crossing the conflicting traffic in groups. It is observed that in group gap acceptance behavior, the decision of each vehicle in the group, other than first vehicle, depends on the decision of the first vehicle or covering vehicle in the group and the group follow up distance. Two types of situations arise in the group gap acceptance behavior: a) all vehicles in a group cross in the same gap accepted by first vehicle in group, b) some vehicles reject the gap accepted by other vehicles in the group and wait for the next gap. The second situations arises due to jostling of major road conflicting vehicles, larger group follow up distance and drivers individual decision not to accept gap. This is two-step decision problem, and hence the authors modeled this behavior by developing a two-step logit model. The data is collected at three T-intersection, where two-wheeler and auto-rickshaw (a three-wheeler taxi), constitute 60% and car, 35% of the total traffic. The critical gap using Raff’s method is found to be 3.4 seconds. Model is developed using NLOGIT 4.0. Developed two-step model results in 93.59% correct prediction for step-1 and for step-2, it is 93.97%.
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Supplemental Notes:
- This paper was sponsored by TRB committee AHB45 Traffic Flow Theory and Characteristics.
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Corporate Authors:
500 Fifth Street, NW
Washington, DC United States 20001 -
Authors:
- Sangole, Jayant P
- Patil, Gopal R
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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: 16p
- Monograph Title: TRB 93rd Annual Meeting Compendium of Papers
Subject/Index Terms
- TRT Terms: Gap acceptance; Logits; Right turns; T intersections; Traffic flow theory; Traffic platooning; Unsignalized intersections
- Geographic Terms: India
- Subject Areas: Highways; Operations and Traffic Management; I71: Traffic Theory;
Filing Info
- Accession Number: 01520272
- Record Type: Publication
- Report/Paper Numbers: 14-4866
- Files: TRIS, TRB, ATRI
- Created Date: Mar 27 2014 2:56PM