[1] Wang Linhong, Bie Yiming, Wang Dianhai, Song Xianmin, et al. Multi-phase bus signal priority strategy at isolated intersections [J]. Journal of Southeast University (English Edition), 2011, 27 (4): 430-435. [doi:10.3969/j.issn.1003-7985.2011.04.016]

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Multi-phase bus signal priority strategy at isolated intersections()

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Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]

Volumn:

27

Issue:

2011 4

Page:

430-435

Research Field:

Traffic and Transportation Engineering

Publishing date:

2011-12-31

Info

Title:

Multi-phase bus signal priority strategy at isolated intersections

Author(s):

Wang Linhong¹;  Bie Yiming¹;  Wang Dianhai²;  Song Xianmin¹

¹ College of Transportation, Jilin University, Changchun 130025, China
² College of Civil Engineering and Architecture, Zhejiang University, Hangzhou 310058, China

Keywords:

bus signal priority;  multiple phases;  early green;  green extension;  isolated intersection

PACS:

U491

DOI:

10.3969/j.issn.1003-7985.2011.04.016

Abstract:

To satisfy the multiple priority requests from buses that arrive at different phases within a small time window, a multi-phase bus signal priority(MPBSP)strategy is developed. The proximity principle is brought forward to settle the conflicts among multiple priority requests and arrange the optimal priority sequence. To avoid over saturation of the intersection, a conditional MPBSP algorithm that adopts early green and green extension strategies is developed to give priority to the bus with the highest priority level when green time that each phase runs makes its saturation degree not larger than 0.95. Finally, the algorithm is tested in the VISSIM environment and compared with the normal signal timing algorithm. Sensitive analysis of the number of priority phases, bus demand, and volume to capacity ratios are conducted to quantify their impacts on the benefits of the MPBSP. Results show that the MPBSP strategy can effectively reduce bus delays, and with the increase in the number of priority phases, the reduction range of bus delays also increases.

References:

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Memo

Memo:

Biographies: Wang Linhong(1984—), female, graduate; Wang Dianhai(corresponding author), male, doctor, professor, wangdianhai@sohu.com.
Foundation items: The National High Technology Research and Development Program of China(863 Program)(No.2011AA110304), the National Natural Science Foundation of China(No.50908100), Graduate Innovation Fund of Jilin University(No.20111044).
Citation: Wang Linhong, Bie Yiming, Wang Dianhai, et al. Multi-phase bus signal priority strategy at isolated intersections[J].Journal of Southeast University(English Edition), 2011, 27(4):430-435.[doi:10.3969/j.issn.1003-7985.2011.04.016]

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