基于Vissim的广州快速公交系统交通仿真建模与分析

交通拥堵是世界各大城市发展的必经阶段，而大力发展公共交通，形成多方式组合协调的交通发展模式是大城市的必然选择。广州市选择建立中山大道BRT系统，施行“封闭式走廊 灵活线路”的模式，要通过建立BRT全线的微观交通仿真模型，预先由3D动态演示直观展现BRT系统开通运营后的交通状况，同时在模型中设置节点检测器，行程时间检测器及流量检测器等，得到了延误时间、排队长度、行程速度、路段饱和度等指标，通过以上指标对BRT系统展开交通工程的系统分析。仿真结果表明，BRT系统的建设不仅能够满足各种交通方式的通行需求，而且实现了BRT沿线的交通畅通。

Traffic Simulation Modeling and Analysis of Guangzhou BRT Based on Vissim

Traffic congestion is the necessary step in the development of world's major cities ,while developing public transportation and forming a coordinated multi-mode transport development model is inevitable choice for them. Guangzhou chose the BRT system as well as the model of enclosed galley and flexible lines, aiming to build an whole line microcosmic simulation model. Based on the model, 3D dynamic demonstration of traffic condition along the galley was possible. Also, node detector, travel time detector and flow detector were set up to get simulation data in order to calculate delay time, queue length, travel speed and sections of saturation, then analysis was availability. Simulation results show that BRT can meet the needs of travel of various modes of transportation, also achieve smooth flow of traffic along the BRT galley.