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《Transportation Science & Technology》 2017-02
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Simulation Study of Wuhan Hongmiao Pivot Interchange Capacity

YIN Jie;WU Ruilin;WANG Wei;YANG Meimei;LYU Jingang;SHANG Yangang;School of Civil Engineering and Mechanics,Huazhong University of Science and Technology;China Railway Siyuan Survey and Design Group Co.,Ltd.;Wuhan Municipal Engineering Design & Research Institute Co.,Ltd.;Wuhan Landed Estate Development and Investment Group Co.,Ltd.;  
Hongmiao pivot interchange is located at the passageway of an Extra-Long Tunnel;tunnel and interchange affect and restrict each other.For the traffic situation of the Extra-Long Tunnel and pivot interchange,the field traffic survey data and urban traffic forecast data are adopted as the research base,and the VISSIM traffic simulation software is used to establish the simulation model for Hongmiao pivot interchange.By changing different parameters such as flow rate,velocity and direction,the traffic simulation experiments are carried out to predict the traffic bottleneck point and the overall capacity of the pivot interchange.Finally,the simulation experiment data is analyzed to identify and summarize the occurrence at the bottleneck points of hub congested area,and the ratio relationship between the actual overall capacity and "design capacity" is obtained.
【CateGory Index】: U491
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