基于VISSIM仿真的隧道衔接交叉口交通组织优化

Traffic Organization Optimization for the Intersection Convergence of Tunnel Based on VISSIM Simulation

为了改善隧道衔接交叉口出现的交通拥堵情况,结合入口匝道通行能力模型,建立了隧道衔接交叉口的相位相序选择模型。以翔殷路隧道匝道及其衔接的交叉口为例,结合实际情况,运用VISSIM仿真模型,分析由交叉口进入隧道的各车道车辆的行程时间、平均延误、排队车辆等指标,证明模型的有效性。仿真结果表明:优化后,交叉口南进口左转延误降低了24.7%,东进口直行的延误降低了42.3%,降低了隧道衔接交叉口的总延误,有效缓解了高峰期拥堵的状况。

In order to improve the traffic congestion situation at the intersection of tunnel junctions and the inlet ramp capacity model, a phase phase selection model of tunnel junction intersection is established. Taking the intersection of Xiangyan road tun- nel and its intersection as an example, the VISSIM simulation model is used to analyze the travel time. the average delay and the queuing vehicle of the lane vehicles entering the tunnel from the intersection to prove the effective model sex. The simulation results show that. after optimization, the turn left turn delay of the intersection is reduced by 24.7%. the delay of the east en- trance is reduced by 42.3%, which reduces the total delay of the tunnel junction and effectively aUeviates the peak congestion.