Increasing Capacity of Intersections with Transit Priority

  • Yanxi Hao Tongji University
  • Jing Teng Tongji University
  • Yinsong Wang Tongji University
  • Xiaoguang Yang Tongji University
Keywords: urban roads, effective transit priority, dedicated bus lane, dynamic lane assignment,

Abstract

Dedicated bus lane (DBL) and transit signal priority (TSP) are two effective and low-cost ways of improving the reliability of transits. However, these strategies reduce the capacity of general traffic. This paper presents an integrated optimization (IO) model to improve the performance of intersections with dedicated bus lanes. The IO model integrated geometry layout, main-signal timing, pre-signal timing and transit priority. The optimization problem is formulated as a Mix-Integer-Non-Linear-Program (MINLP) that can be transformed into a Mix-Integer-Linear-Program (MILP) and then solved by the standard branch-and-bound technique. The applicability of the IO model is tested through numerical experiment under different intersection layouts and traffic demands. A VISSIM micro simulation model was developed and used to evaluate the performance of the proposed IO model. The test results indicate that the proposed model can increase the capacity and reduce the delay of general traffic when providing priority to buses.

Author Biographies

Yanxi Hao, Tongji University

Research Assistant

Key Laboratory of Road and Traffic Engineering of the Ministry of Education, China

 

Jing Teng, Tongji University

Associated Professor

Key Laboratory of Road and Traffic Engineering of the Ministry of Education, China
Yinsong Wang, Tongji University

Research Assistant

Key Laboratory of Road and Traffic Engineering of the Ministry of Education, China
Xiaoguang Yang, Tongji University

Professor, Tongji University

Key Laboratory of Road and Traffic Engineering of the Ministry of Education, China

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Published
2016-12-21
How to Cite
1.
Hao Y, Teng J, Wang Y, Yang X. Increasing Capacity of Intersections with Transit Priority. PROMET [Internet]. 2016Dec.21 [cited 2020Sep.21];28(6):627-3. Available from: https://traffic.fpz.hr/index.php/PROMTT/article/view/1999
Section
Articles