摘要The plane interchange adopts the form and traffic organization mode of alfalfa leaf interchange, that is, by adding right turn ramps and small loops on the 4 corners of the ordinary grade intersection, it is similar to alfalfa leaf interchange in form. Because of its low engineering cost, flexible traffic organization, simple control mode and high traffic efficiency, it has become one of the selection types of urban expressway and main road or main road and main road intersection. According to the geometric characteristics and traffic organization characteristics of plane interchange, and the evaluation objectives of intersection operation efficiency, safety, environment and other aspects, an index system based on 5 specific evaluation indicators is proposed, including traffic capacity, average vehicle delay, intersection safety, CO emission, and detour distance. To overcome the subjective or objective situation of the index weight in the process of multi index evaluation, the TOPSIS method is optimized by using combined weighting, and the traffic organization evaluation model of plane interchange based on combined weighting TOPSIS method is constructed. Taking the 3 traffic organization modes of the West Middle Ring Auxiliary Road and Xinghua West Street plane interchange in Taiyuan as an example, in continuous working days, traffic data are obtained through intersection flow direction investigation, point sample delay investigation, headway and speed investigation, VISSIM intersection simulation model is established, and the evaluation index values are obtained directly or indirectly. The advantages and disadvantages of various schemes are determined through the combined weighting-TOPSIS method proposed in this paper. The calculation results are compared with the actual situation, which verifies the rationality of the method. The result can provide theoretical support for the rational evaluation of the urban plane interchange traffic organization or the regional traffic organization scheme using this idea.
Abstract：The plane interchange adopts the form and traffic organization mode of alfalfa leaf interchange, that is, by adding right turn ramps and small loops on the 4 corners of the ordinary grade intersection, it is similar to alfalfa leaf interchange in form. Because of its low engineering cost, flexible traffic organization, simple control mode and high traffic efficiency, it has become one of the selection types of urban expressway and main road or main road and main road intersection. According to the geometric characteristics and traffic organization characteristics of plane interchange, and the evaluation objectives of intersection operation efficiency, safety, environment and other aspects, an index system based on 5 specific evaluation indicators is proposed, including traffic capacity, average vehicle delay, intersection safety, CO emission, and detour distance. To overcome the subjective or objective situation of the index weight in the process of multi index evaluation, the TOPSIS method is optimized by using combined weighting, and the traffic organization evaluation model of plane interchange based on combined weighting TOPSIS method is constructed. Taking the 3 traffic organization modes of the West Middle Ring Auxiliary Road and Xinghua West Street plane interchange in Taiyuan as an example, in continuous working days, traffic data are obtained through intersection flow direction investigation, point sample delay investigation, headway and speed investigation, VISSIM intersection simulation model is established, and the evaluation index values are obtained directly or indirectly. The advantages and disadvantages of various schemes are determined through the combined weighting-TOPSIS method proposed in this paper. The calculation results are compared with the actual situation, which verifies the rationality of the method. The result can provide theoretical support for the rational evaluation of the urban plane interchange traffic organization or the regional traffic organization scheme using this idea.
基金资助:Supported by the General Program of National Natural Science Foundation of China (No.51968063); the Science and Technology Innovation Project of Colleges and Universities in Shanxi Province (No.2020l0348); the Shanxi Philosophy and Social Science Planning Project (No.2020yj127)
通讯作者:
ZHUO Ya-juan
引用本文:
卓亚娟, 贾志绚, 韩智强, 李明磊, 陈嘉毅. Study on Evaluation of Urban Plane interchange Traffic Organization Based on Combined Weighting-TOPSIS Method[J]. Journal of Highway and Transportation Research and Development, 2022, 16(3): 67-77.
ZHUO Ya-juan, JIA Zhi-xuan, HAN Zhi-qiang, LI Ming-lei, CHEN Jia-yi. Study on Evaluation of Urban Plane interchange Traffic Organization Based on Combined Weighting-TOPSIS Method. Journal of Highway and Transportation Research and Development, 2022, 16(3): 67-77.
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2022, Vol. 16 
