Traffic Safety Evaluation Approach for Reconstructed Freeway Medium Strip Opening Area

2019 2nd International Conference on Advanced Materials, Intelligent Manufacturing and Automation

Zhou, Jiacai^1^2

CCCC Second Highway Consultants Co. Ltd., Wuhan, Hubei

430052, China^1

Wuhan Zhongjiao Traffic Engineering Co. Ltd., Wuhan, Hubei

430052, China^2

关键词: Driving behavior;    Interweaving area;    Opening areas;    Separation zone;    Traffic flow;    Traffic flow characteristics;    Traffic safety;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/569/3/032082/pdf
DOI  :  10.1088/1757-899X/569/3/032082

来源: IOP

【 摘 要 】

The remaining of the medium strip of the freeway in reconstruction and widening project reduces the cost of renovation, however brings potential driving risks. In this study, the characteristics of traffic flow changes caused by the opening of the medium strip were analyzed. The safety of the opening length of the medium strip was evaluated based on the interweaving and conflicting driving behavior characteristics, and the opening length of the interweaving area of the medium strip was calculated. In addition, the location of the exit traffic sign was advised for this new traffic flow characteristic. Appropriate opening length of the medium strip and the optimized traffic signs can effectively guide drivers to enter and exit the closed area of the central separation zone safely and comfortably.