[1] Wang Dianhai, Liang Chunyan, Cheng Yao, Yao Ronghan, et al. Study on compressibility of traffic flow [J]. Journal of Southeast University (English Edition), 2009, 25 (2): 262-266. [doi:10.3969/j.issn.1003-7985.2009.02.025]
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Study on compressibility of traffic flow(
)
)Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]
- Volumn:
- 25
- Issue:
- 2009 2
- Page:
- 262-266
- Research Field:
- Traffic and Transportation Engineering
- Publishing date:
- 2009-06-30
Info
- Title:
- Study on compressibility of traffic flow
- Author(s):
- Wang Dianhai1; Liang Chunyan2; Cheng Yao1; Yao Ronghan3
-
1 College of Transportation, Jilin University, Changchun 130025, China
2School of Science and Engineering on Communications, Jilin Architecture and Civil Engineering Institute, Changchun 130021, China
3 Center for Transportation Research, Dalian University of Technology, Dalian 116024, China
- PACS:
- U491
- DOI:
- 10.3969/j.issn.1003-7985.2009.02.025
- Abstract:
- In order to describe the compressibility of traffic flows and determine the compression factors, the Mach number of gas dynamics is introduced, and the concept and the formula of the compression factor are obtained.According to the concept of the compression factor and its differential equation, a stop-wave model is built.The theoretical value and the observed one are obtained by the survey data in Changchun city.The relative error between the two values is 20.3%.The accuracy is improved 39% compared with the result from the traditional stop-wave model.The results show that the traffic flow is compressible, and the methods of research on gas compressibility is also applicable to the traffic flow.The stop-wave model obtained by the compression factor can better describe the phenomenon of the stop wave at a signalized intersection when compared with the traditional stop-wave model.
References:
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[8] Lei Li, Xue Yu, Dai Shiqiang.One-dimensional sensitive driving cellular automaton model for traffic flow[J].Acta Physica Sinica, 2003, 52(9):2121-2126.(in Chinese)
[9] Kuang Hua, Kong Lingjiang, Liu Muren.The study of a cellular automaton traffic flow model with mixed different-maximum-speed vehicles on signal lane[J].Acta Physica Sinica, 2004, 53(9):2894-2898.(in Chinese)
[10] Zhang Zhaoshun, Cui Guixiang.Hydrodynamics[M].Beijing:Tsinghua University Press, 2005.(in Chinese)
[11] Jing Chunguang.Research on the theory and application of vehicle-bicycle conflict at intersection[D].Changchun:Transportation College of Jinlin University, 2005.(in Chinese)
Memo
- Memo:
-
Biography: Wang Dianhai(1962—), male, doctor, professor, wangdianhai@sohu.com.
Foundation item: The National Basic Research Program of China(973 Program)(No.2006CB705505).
Citation: Wang Dianhai, Liang Chunyan, Cheng Yao, et al.Study on compressibility of traffic flow[J].Journal of Southeast University(English Edition), 2009, 25(2):262-266.