有应急车辆的城市道路混合交通流建模与特征参数研究

项目名称： 有应急车辆的城市道路混合交通流建模与特征参数研究

项目编号： No.51308165

项目类型： 青年科学基金项目

立项/批准年度： 2014

项目学科： 建筑科学

项目作者： 赵韩涛

作者单位： 哈尔滨工业大学

项目金额： 24万元

中文摘要： 随机时变的道路网络交通直接影响应急车辆响应可靠性，而交通流数据是辅助应急车辆路径选择的关键参数。应急车辆通行优先权使其个体行为明显有别于社会车辆，并导致社会车辆的驾驶行为及让行心理均异于日常。以往交通流模型研究中，对应急车辆与交通流的相互作用规律及影响机理涉及较少。本项目拟以城市道路应急车辆为研究对象，立足统计学、交通心理学和交通流理论，结合元胞自动机仿真技术，从交通流建模和实验两方面入手，首先解析有应急车辆通行时的交通运行环境；然后剖析各种车辆的驾驶行为和心理，建立混合交通流元胞自动机模型并仿真实现，同时搭建实车实验平台；最后探讨混合交通流特征参数，尤其是应急车辆行程时间随交通流的波动规律。研究成果对于探索有应急车辆的交通流运行规律、丰富交通流建模理论和解决应急车辆路径选择问题具有重要的理论意义和现实价值。

中文关键词： 城市道路；混合交通流；应急车辆；元胞自动机；行程时间

英文摘要： Stochastic and time-varying characteristics of road network traffic have a direct impact on rescue reliability, while the traffic data is the key parameter for auxiliary path choice of emergency vehicles. When the emergency vehicles pass through, their priority makes their individual behavior be different from other vehicles obviously, and causes the driving behavior and psychology of social vehicles to be at variance with those of daily traffic. In previous studies, the interaction rule and impact mechanism between emergency vehicles and traffic flow are rarely involved. This project takes emergency vehicles on urban roads as the object of study. Based on statistics, traffic psychology and traffic flow theory, combined with cellular automaton simulation technology, starting from the traffic flow modeling and experiment, the operating environment of emergency vehicles passing traffic will be firstly resolved. Then the driving behavior and the psychology of each kind of vehicles shall be analyzed, the establishment and simulation of mixed traffic flow cellular automaton model are to be achieved, simultaneously a vehicle test platform will be built. Finally, we discuss the mixed traffic flow characteristic parameters, especially the fluctuation rule of emergency vehicle travel time in different traffic flow. The r

英文关键词： Urban Road；Mixed Traffic Flow；Emergency Vehicle；Cellular Automaton；Travel Time