An Enhanced Safe Distance Car-Following Model

doi:10.1007/s12204-014-1479-5

上海交通大学学报（英文版） ›› 2014, Vol. 19 ›› Issue (1): 115-122.doi: 10.1007/s12204-014-1479-5

An Enhanced Safe Distance Car-Following Model

YANG Da1,2,3* (杨达), ZHU Li-ling1 (祝俪菱), YU Dan1 (于丹)，YANG Fei1,2 (杨飞), PU Yun1 (蒲云)

(1. School of Transportation and Logistics, Southwest Jiaotong University, Chengdu 610031, China; 2. Nation-Local Association Laboratory of Comprehensive Transportation Intelligentization, Chengdu 610031, China; 3. Department of Civil and Environmental Engineering, University of Wisconsin-Madison, Madison 53706, USA)

出版日期:2014-01-15 发布日期:2014-01-15
通讯作者: YANG Da (杨达) E-mail:yangd8@gmail.com

An Enhanced Safe Distance Car-Following Model

YANG Da1,2,3* (杨达), ZHU Li-ling1 (祝俪菱), YU Dan1 (于丹)，YANG Fei1,2 (杨飞), PU Yun1 (蒲云)

(1. School of Transportation and Logistics, Southwest Jiaotong University, Chengdu 610031, China; 2. Nation-Local Association Laboratory of Comprehensive Transportation Intelligentization, Chengdu 610031, China; 3. Department of Civil and Environmental Engineering, University of Wisconsin-Madison, Madison 53706, USA)

Online:2014-01-15 Published:2014-01-15
Contact: YANG Da (杨达) E-mail:yangd8@gmail.com

摘要/Abstract

摘要： Gipps’ model, a well-known safe distance car-following model, has a very strict restriction on the car-following behavior that the following vehicle has to maintain the exact safe distance to the leading vehicle to avoid rear crash. However, this restriction is not consistent with the real traffic condition. Due to that, an enhanced safe distance car-following model is proposed first, and then calibrated and evaluated using the field data. Furthermore, the simulation is conducted to analyze the characteristics of the new model. The results of evaluation and simulation illustrate that the proposed model has higher simulation accuracy than the original Gipps’ model, and can reproduce the stable flow and shock wave phenomena that are very common in real traffic. Moreover, the simulation results also prove that the enhanced model can better stabilize the traffic flow than Gipps’ model.

关键词: traffic flow, car-following, Gipps’safe distance model, velocity difference

Abstract: Gipps’ model, a well-known safe distance car-following model, has a very strict restriction on the car-following behavior that the following vehicle has to maintain the exact safe distance to the leading vehicle to avoid rear crash. However, this restriction is not consistent with the real traffic condition. Due to that, an enhanced safe distance car-following model is proposed first, and then calibrated and evaluated using the field data. Furthermore, the simulation is conducted to analyze the characteristics of the new model. The results of evaluation and simulation illustrate that the proposed model has higher simulation accuracy than the original Gipps’ model, and can reproduce the stable flow and shock wave phenomena that are very common in real traffic. Moreover, the simulation results also prove that the enhanced model can better stabilize the traffic flow than Gipps’ model.

Key words: traffic flow, car-following, Gipps’safe distance model, velocity difference

中图分类号:

U 491.2

YANG Da1,2,3* (杨达), ZHU Li-ling1 (祝俪菱), YU Dan1 (于丹)，YANG Fei1,2 (杨飞), PU Yun. An Enhanced Safe Distance Car-Following Model[J]. 上海交通大学学报（英文版）, 2014, 19(1): 115-122.

YANG Da1,2,3* (杨达), ZHU Li-ling1 (祝俪菱), YU Dan1 (于丹)，YANG Fei1,2 (杨飞), PU Yun1 (蒲云). An Enhanced Safe Distance Car-Following Model[J]. Journal of shanghai Jiaotong University (Science), 2014, 19(1): 115-122.

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An Enhanced Safe Distance Car-Following Model

An Enhanced Safe Distance Car-Following Model

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