|Table of Contents|

[1] Ma Yongfeng, Yuan Li, Zhang Wenbo,. Analytical method of minimum spacing of signalized intersectionson bidirectional two-lane highways [J]. Journal of Southeast University (English Edition), 2015, 31 (4): 547-552. [doi:10.3969/j.issn.1003-7985.2015.04.020]
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Analytical method of minimum spacing of signalized intersectionson bidirectional two-lane highways()
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Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]

Volumn:
31
Issue:
2015 4
Page:
547-552
Research Field:
Traffic and Transportation Engineering
Publishing date:
2015-12-30

Info

Title:
Analytical method of minimum spacing of signalized intersectionson bidirectional two-lane highways
Author(s):
Ma Yongfeng1 Yuan Li2 Zhang Wenbo3
1School of Transportation, Southeast University, Nanjing 210096, China
2College of Civil and Transportation Engineering, Hohai University, Nanjing 210098, China
3Department of Civil Engineering, Purdue University, West Lafayette, IN 47907, USA
Keywords:
highway signalized intersection spacing platoon dispersion
PACS:
U412
DOI:
10.3969/j.issn.1003-7985.2015.04.020
Abstract:
In order to improve the smoothness of traffic flow on bidirectional two-lane highways, an analytical method is proposed to optimize the minimum spacing of the signalized intersections. The minimum signal spacing is determined by two parts, including the necessary distance for stabilizing the traffic flow after it passes through the signalized intersections and the length of the upstream functional area of intersection. For the former, based on the platoon dispersion theory, the stable distance determination problem of traffic flow is studied and a model of dispersion degrees varying with the distance from the upstream intersection is presented, in which the time headway is intended to yield the shifted negative exponential distribution. The parameters of the model for arterial and collector highways are estimated respectively based on the field data. Then, the section at which the slope of dispersion degree curve equals -0.1 is regarded as the beginning of the dispersion stable state. The length of the intersection upstream functional area is determined by three parts, including the distance traveled during perception-reaction time, the distance traveled while a driver decelerates to a stop, and the queue storage length. Based on the above procedures, the minimum signal spacing of each highway category is proposed.

References:

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Memo

Memo:
Biography: Ma Yongfeng(1980—), male, doctor, associate professor, mayf@seu.edu.cn.
Foundation item: The National Natural Science Foundation of China(No.51208100, 51308192).
Citation: Ma Yongfeng, Yuan Li, Zhang Wenbo. Analytical method of minimum spacing of signalized intersections on bidirectional two-lane highways[J].Journal of Southeast University(English Edition), 2015, 31(4):547-552.[doi:10.3969/j.issn.1003-7985.2015.04.020]
Last Update: 2015-12-20