信息反馈策略对含两车道的双通道系统影响研究

Effects of information feedback strategy in two-route model with two-lines

实际道路系统中,道路状况复杂,单纯的假设驾驶员备选路径路宽相同具有一定的局限性。针对现实生活中存在备选路径路宽不同,车道数存在差异的情形,建立了含两车道的双通道道路模型,并分析了平均速度、车辆数、交通流量以及随机度信息反馈策略对该道路模型中交通流参数的影响。仿真结果表明:平均速度及随机度反馈策略下,道路上车辆运行有序,两条路径上车辆的平均速度存在良好的平衡性;车辆数反馈策略下,两条路径上车辆密度具有良好的平衡性。当动态车比例小于0.6时,四种反馈策略发挥的作用相差无几;当动态车比例大于0.6时,随机度反馈策略在提高道路平均流量方面具有优越性;而交通流量反馈策略与前三种策略相比存在明显的不足。

In the actual road system,as the road condition is complex,the simple assumption that the width of the driver＇s alternative path is the same has limitation. Considering the road width and the lane number of the driver＇s alternative path are different in reality,a two-route model with twolane is established. The influence of average speed feedback strategy,vehicle number feedback strategy,flux feedback strategy and randomness degree feedback strategy on the road model are analyzed. The simulation results show that the vehicles running on the road are orderly,and the average speed of the vehicles on the two paths is well balanced with the average speed feedback strategy and randomness degree feedback strategy. The density of the road is balanced with the vehicle number feedback strategy. When the ratio of dynamic vehicle is less than 0. 5,the effect of the four different feedback strategies is almost the same. When the ratio of dynamic vehicle is exceeded0. 6,the randomness degree feedback strategy has the advantage of improving the average flow rate.The flux feedback strategy has obvious shortcomings compared with the other three strategies.