考虑排放因素的公交优先信号控制优化方法研究

以4相位单交叉口为研究对象,保持信号周期不变的情况下,以减少人的总延误和交叉口区域尾气排放量为目标,通过改变各相位绿灯时间来建立优化模型。运用粒子群算法对模型求解。仿真算例表明,此方法在降低交叉口区域人总延误的同时,减少了该区域内机动车尾气排放量,在保障车辆正常通行的情况下改善了环境质量。

Optimization Method Based on Emission Factors of Signal Control for Bus Priority

A model for bus-priority is built to minimize the total delay of passenger and reduce the exhaust emissions at the intersection with four-phase single intersection as the object of study.When the signal cycle is constant,a bus-priority phase for green extension is used and the model can be solved by the particle-swarm-optimization.The simulation results indicate that the total delay is eased while the exhaust emissions at the intersection can be reduced.Hence,the environmental quality is greatly improved at the situation of normal passing.