Characteristics of synchronized traffic in mixed traffic flow

doi:10.1088/1674-1056/21/4/040506

中国物理B ›› 2012, Vol. 21 ›› Issue (4): 40506-040506.doi: 10.1088/1674-1056/21/4/040506

宁宏新¹,薛郁¹ ²

收稿日期:2011-07-03 修回日期:2011-10-04 出版日期:2012-02-29 发布日期:2012-02-29
通讯作者: 薛郁, E-mail:yuxuegxu@gxu.edu.cn E-mail:yuxuegxu@gxu.edu.cn

Characteristics of synchronized traffic in mixed traffic flow

Ning Hong-Xin(宁宏新)^a) and Xue Yu(薛郁)^a)b)^†

a. Institute of Physics Science and Engineering, Guangxi University, Nanning 530004, China;
b. Shanghai Institute of Applied Mathematics and Mechanics, Shanghai University, Shanghai 200072, China

Received:2011-07-03 Revised:2011-10-04 Online:2012-02-29 Published:2012-02-29
Contact: Xue Yu, E-mail:yuxuegxu@gxu.edu.cn E-mail:yuxuegxu@gxu.edu.cn
Supported by:
Project supported by the National Natural Science Foundation of China(Grant Nos.10865001 and 11047003),the National BasicResearch Program of China(Grant No.2006CB705500),and the Graduate Student Innovative Foundation of Guangxi ZhuangAutonomous Region,China(Grant No.105930903077)

摘要/Abstract

Abstract: In this paper, the characteristics of synchronized traffic in mixed traffic flow are investigated based on the braking light model. By introducing the energy dissipation and the distribution of slowdown vehicles, the effects of the maximum velocity, the mixing ratio, and the length of vehicles on the synchronized flow are discussed. It is found that the maximum velocity plays a great role in the synchronized flow in mixed traffic. The energy dissipation and the distribution of slowdown vehicles in the synchronized flow region are greatly different from those in free flow and a traffic jamming region. When all of vehicles have the same maximum velocity with V_max > 15, the mixed traffic significantly displays synchronized flow, which has been demonstrated by the relation between flow rate and occupancy and estimation of the cross-correlation function. Moreover, the energy dissipation in the synchronized flow region does not increase with occupancy. The distribution of slowdown vehicles shows a changeless platform in the synchronized flow region. This is an interesting phenomenon. It helps to deeply understand the synchronized flow and greatly reduce the energy dissipation of traffic flow.

Key words: cellular automata, synchronized flow, mixed traffic flow, energy dissipation

中图分类号: (Phase transitions: general studies)

05.70.Fh

89.40.-a (Transportation) 05.90.+m (Other topics in statistical physics, thermodynamics, and nonlinear dynamical systems)

宁宏新, 薛郁. [J]. 中国物理B, 2012, 21(4): 40506-040506.

Ning Hong-Xin(宁宏新) and Xue Yu(薛郁) . Characteristics of synchronized traffic in mixed traffic flow[J]. Chin. Phys. B, 2012, 21(4): 40506-040506.

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Characteristics of synchronized traffic in mixed traffic flow

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