中观交通仿真模型dynaCHINA及其案例应用

A Mesoscopic Traffic Simulation Model and Its Case Applications

交通仿真模型可以分为宏观、中观、微观三类,中观交通仿真模型是一种能够兼顾宏观与微观模型优点的交通流动态仿真模型。国内对宏观、微观交通仿真模型已有很多研究,但是对于中观交通仿真模型的研究还很少。根据中观交通仿真模型DynaCHINA的基本原理及功能特点,将其应用于智能交通中,并结合实例加以分析。针对实际路网的测试表明,该模型可有效缩短车辆在路网中的平均旅行延误,并可推广应用于更复杂的区域路网。

Traffic simulation models can be divided into three classes-macroscopic, mesoscopic and microscopic simulation models. A mesoscopic traffic simulation model has both the positives of a macroscopic and a microscopic model. Relevant domestic research on a mesoscopic model is still quite rare. We apply a mesoscopic model, DynaCHINA, to intelligent transportation based on its principle and functionalities and analyze some application cases. Actual road network tests show that this model can effectively reduce the average travel delay of a vehicle in a road network and can be extended to applications in more complex road networks.