应用于运营管理的公路交通排放研究

发布时间：2018-03-04 23:18

本文选题：公路限速　切入点：交通排放　出处：《上海交通大学》2014年硕士论文　论文类型：学位论文

【摘要】：交通运营管理措施目前已被越来越多的应用于改善交通环境方面。常用的交通运营管理措施主要是信号控制优化和可变限速值。论文定量研究了不同交通状况下公路限速对交通排放物CO、HC和NOx的影响和所应采取的交通运营管理措施。本文选取了无锡市S342一级公路作为测试对象，综合利用了微观仿真软件VISSIM和由车载排放设备测试数据构建的交通排放模型。VISSIM用来输出不同限速条件下单车的瞬时速度和加速度数据，交通排放模型根据单车的瞬时速度和加速度输出排放数据。现在限速值、单向流量和重车比分别为80km/h、1800vph和20%。限速值的变化区间取[50,90]，步长5km/h，为模拟不同交通状况，流量值的变化区间取[900,3600]，步长900vph，重车比的变化区间取[0%,30%]，步长10%，以单位里程排放量（mg/km）为排放大小衡量标准。研究结果显示，同等限速值下，随着交通流量和重车比的增大，三种污染物排放率呈增大的趋势，另外，存在最优限速值使得三种污染物各自排放最少，且该限速值会随着交通量和重车比的变化而发生变化。针对流量和重车比的变化，，采用可变限速控制是最优的交通运营管理措施。
[Abstract]:Traffic operation management measures have been applied more and more to improve traffic environment. The commonly used traffic management measures are signal control optimization and variable speed limit. The influence of Highway Speed limit on COH- HC and NOx of Traffic Emission and the measures to be taken in Traffic Operation Management. In this paper, the first class highway of Wuxi S342 is selected as the test object. The micro simulation software VISSIM and the traffic emission model. VISSIM constructed from the vehicle emission equipment test data are used to output the instantaneous speed and acceleration data of the bicycle under different speed limits. The traffic emission model outputs emissions data based on the instantaneous speed and acceleration of a bicycle. The current speed limit, one-way flow and the ratio of heavy to heavy vehicles are 80 km / a / h and 20 / h, respectively. The range of variation of the speed limit is [50 / 90] and the step is 5 km / s / h, to simulate different traffic conditions. The variation range of flow value is taken as [900U 3600], the step length is 900vph. the variation interval of the ratio of heavy vehicles to vehicles is taken as [0%], the step length is 10%, and the unit mileage emissions are measured by the amount of emissions per mileage. The results show that under the same speed limit, with the increase of the traffic flow and the ratio of heavy cars, The emission rate of the three pollutants tends to increase. In addition, the existence of the optimal speed limit makes each of the three pollutants emit the least, and the speed limit will change with the change of the traffic volume and the ratio of heavy to heavy vehicles. Variable speed limit control is the best traffic management measure.
【学位授予单位】：上海交通大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：U491;U467.48

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