Simulation on Vehicles Mandatory Lane Changing and Merging Process in case of Road Bottleneck

doi:10.16182/j.issn1004731x.joss.19-0117

Abstract

Abstract: A microscopic dynamic traffic flow model based on vehicle's mandatory lane changing behavior is established. Under the condition of road bottleneck, three macroscopic traffic flow characteristics of traffic flow, lane speed distribution and space-time diagram, and two microscopic traffic flow characteristics of merging distance and vehicle's travel time are analyzed. The simulation results show that, the total flow of arbitrary cross section of the bottleneck road can represent the overall traffic capacity, and the road bottleneck can reduce the total traffic flow by 10% to 35%, and cause a delay of 17% to 42% to the vehicle travel time under the condition of moderate and high traffic density. The road bottleneck has a deceleration effect on a certain long area of the upper reaches of the road. The ninety-ninth percentile of the merging distance of vehicle's mandatory lane changing can be used as the reference for the location setting of the traffic information board.

Key words: road bottleneck, traffic flow, microscopic dynamic model, mandatory lane changing, characteristic analysis

CLC Number:

U121

Lü Wei, Huo Feizhou. Simulation on Vehicles Mandatory Lane Changing and Merging Process in case of Road Bottleneck[J]. Journal of System Simulation, 2020, 32(9): 1799-1807.

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