Citation: | PAN Binghong, DONG Yijia, ZHAO Yaru, TANG Lijiao, YU Yingjie. Minimum Spacing Between Crossovers of Double Crossover Intersection in Diamond Interchange[J]. Journal of Beijing University of Technology, 2019, 45(3): 283-291. DOI: 10.11936/bjutxb2017110028 |
To solve the problem of the inefficiency of the intersection in the diamond interchange, which often causes heavy traffic, and to reduce the traffic flow and optimize transportation organization simultaneously, the design specification of the double crossover intersection was studied based on the concept of the diverging diamond interchange. First, the traffic characteristics of double cross intersection and double crossover intersection were analyzed, and the advantages of double crossover intersection were clarified. Second, combined with the lane changing trajectory of vehicle model, the opposite lane changing distance on crossover was put forward. Finally, the left-turn vehicle driving demand from main road was analyzed, and the process of entering the intersection was divided into the distance of waiting for the gap that can be inserted, the distance of drivers judging and taking measures, lane changing distance, and deceleration or queuing distance. The minimum spacing of crossovers were recommended according to traffic flow theory and queuing theory. Results show that the design speed is the main factor affecting the minimum spacing between crossovers of double crossover intersection, and the cross angle and the number of lanes have less influence on it.
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