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Novel Design Method for Bus Approach Lanes with Bus Guidance and Priority Controls for Prioritizing Through and Left-Turn Buses

Authors :
Shijie Shu
Jing Zhao
Yin Han
Source :
Journal of Advanced Transportation, Vol 2019 (2019)
Publication Year :
2019
Publisher :
Wiley, 2019.

Abstract

Transit priority is a useful way of improving transit operations in urban networks. However, the through and left-turn buses are rarely prioritized simultaneously at isolated intersections in the existing studies. This paper presents a variable bus approach lane design with a bus guidance and priority control model, which can reduce the delay of both the through and left-turn buses. The variable bus approach lanes can be dynamically used for the through and left-turn buses during the various periods of a signal cycle by the integrated design of geometric layouts and signal timing. A detailed bus guidance and priority control optimization model is formulated to guide the buses entering the appropriate bus approach lanes, and it provides optimal signal priorities for buses. The effectiveness of the proposed method is validated by a case study and numerical experiments. The results show that, on average, the total passenger delay can be reduced by 5% for every 30 veh/h and 40 veh/h increase in the volume of through buses and left-turn buses, respectively. Moreover, a comparison between the proposed method and the conventional transit priority method reveals that significant improvements can be made in reducing delays using the proposed method even at intersections with high degree of the saturation.

Details

Language :
English
ISSN :
01976729 and 20423195
Volume :
2019
Database :
Directory of Open Access Journals
Journal :
Journal of Advanced Transportation
Publication Type :
Academic Journal
Accession number :
edsdoj.5bd94695e239409ab9928d601e173921
Document Type :
article
Full Text :
https://doi.org/10.1155/2019/2327876