Integrated Robust Optimization of Scheduling and Signal Timing for Bus Rapid Transit

Jingwei Wang, Yin Han () and Peng Li
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Jingwei Wang: Department of Traffic Engineering, University of Shanghai for Science and Technology, 516 Jungong Road, Shanghai 200093, China
Yin Han: Department of Traffic Engineering, University of Shanghai for Science and Technology, 516 Jungong Road, Shanghai 200093, China
Peng Li: Department of Supply Chain Management, Rutgers University, Newark, NJ 07103, USA

Sustainability, 2022, vol. 14, issue 24, 1-18

Abstract: The unbalanced nature of passenger demand and the uncertainty of delay at intersections are considered critical factors in the efficiency of public transportation operations. Considering the controllable characteristics of the bus rapid transit system (BRT), an integrated optimization model that includes multi-mode transit scheduling and signal timing is proposed. The robust optimization model copes with the fluctuations in passenger demand and bus operation. A non-linear programming is developed to minimize the total passenger travel time and optimize the transit departure time, dwelling strategies at stations, and signal timings at intersections. The constraints on the signal control, degree of saturation, transit scheduling, and passenger waiting time at stations are intended to reflect real traffic conditions. A case study and extensive sensitivity analyses were conducted to evaluate the performance of the proposed model. The results show that the proposed integrated model can adjust the BRT dwelling strategies based on different passenger demands and coordinate transit departure time and signal timing adjustment to mitigate the passenger delay. Furthermore, experimental results demonstrate improvements of 5.3% and 8.1% in the mean and maximum values of passenger travel time, respectively, using the proposed model, compared to those obtained using the conventional operation strategy.

Keywords: bus rapid transit; robust optimization; multi-mode transit scheduling; signal timing (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2022
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