基于差异性度量的城市高架出入口交通仿真研究

Simulation Research on Urban Elevated Entrance and Exit Traffic Based on Difference Scaling

为了研究城市高架出入口交通运行情况,为高架拥堵治理和交通控制提供参考依据,最大限度地保障驾驶人行车安全以及维护高架道路畅通。文章通过建立仿真模型校正流程,采用流量速度图进行微观交通仿真模型参数校正的评价对比研究,并采用模式识别领域中的差异性度量方法,结合遗传算法利用MATLAB进行城市高架模型参数校正,最后运用校正模型进行了实例应用。

In order to study the traffic operation of urban elevated entrances and exits,and provides a reference for elevated congestion control and traffic control to maximize the safety of drivers and maintain the smooth flow of elevated roads.In this paper,through the establishment of simulation model calibration process,the volume-speed figure is used to compare the evaluation of calibration parameters of microscopic traffic simulation model,and the difference measurement method in the field of pattern recognition is used.Combined with genetic algorithm,MATLAB is used to calibrate the parameters of urban elevated model.Finally,an example application was performed using the calibration model.