饱和交通流状态下公共交通优先感应控制优化

Optimization of Public Transport Priority Induction Control Under Saturated Traffic Flow

文中以饱和交通流状态下公共交通优先作为研究对象,提出了一种以交叉口综合通行效益最大化为目标的感应控制方法,构建了以公共交通通行效率最大以及非优先相位排队时间最短为目标,以实时排队长度消散为约束的交叉口感应控制优化模型.并以实际交叉口为例进行仿真验证.结果表明:与现行的控制方案对比,优化方案既能够保障公共交通在交叉口优先通行,使交叉口人均延误减少15.64%,交叉口平均排队长度减少45.88%,又能够使非优先相位车辆的车均延误降低42.53%.

The priority of public transportation under saturated traffic flow was taken as the research object,and an induction control method with the goal of maximizing the comprehensive traffic benefit at intersections was proposed.An optimization model of intersection induction control was established with the maximum traffic efficiency and the shortest queue time in non-priority phases as the goal and the real-time queue length dissipation as the constraint.Taking the actual intersection as an example,the simulation results show that,compared with the current control scheme,the optimized scheme can not only ensure the priority of public transport at the intersection,but also reduce the average delay at the intersection by 15.64%.The average queue length at intersections is reduced by 45.88%,which can also reduce the average delay of vehicles in non-priority phases by 42.53%.