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Mathematical Problems in Engineering
Volume 2016 (2016), Article ID 9487190, 8 pages
Research Article

Optimization Model of Transit Signal Priority Control for Intersection and Downstream Bus Stop

1College of Civil and Transportation Engineering, Hohai University, Xi Kang Road No. 1, Nanjing 210098, China
2School of Transportation, Southeast University, Si Pai Lou No. 2, Nanjing 210096, China

Received 11 September 2015; Revised 26 October 2015; Accepted 26 October 2015

Academic Editor: Yongjun Shen

Copyright © 2016 Rui Li et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Transit signal priority has a positive effect on improving traffic condition and level of transit service in the urban area. In this paper, a passenger-based transit signal priority (TSP) optimization model is formulated to optimize intersection signal phasing based on minimizing accessibility-based passenger delay at the intersection and increased waiting-delay at the downstream bus stop simultaneously. Genetic Algorithm is utilized to calculate passenger-based optimization model that is calibrated by evening rush hour actual traffic data (17:30–18:30, October 13th–October 15th, 2015) along Shuiximen Boulevard in Nanjing, China. The performance of the proposed optimization model in decreasing delay and improving system reliability is simulated and evaluated by VISSIM-based simulation platform, and the results illustrate that the proposed optimization model presents promising outcomes in decreasing accessibility-based passenger delay at intersection (average reduction of 12%) and passenger waiting-delay at downstream bus service stop (average reduction of 18%) compared with traditional vehicle-based TSP optimization method in rush hour.