摘要
通过建立元胞传输模型,研究了紧急事件下动态网络交通流应急疏散问题,将车流离散化处理成单个车辆可以有效地克服网络规模较大时运算效率低的缺点。模型采用时间步长法进行模拟,紧急疏散车辆路径的确定与各路段的走行时间密切相关。仿真实例说明模型和算法提高了紧急事件下网络动态交通配流的应用效果。
The model of the traffic evacuation in emergency based on CTM（cell transmission model）is put forward by the authors. Traffic flows are dispersed into single vehicle in order to resolve the mathematical efficiency of big scale network. With the time step method, the routes of evacuation traffic vehicle areclosely related with move time of every link in condition of emergency. Simulation results show the effectiveness of the distribution of evacuation flow at dynamic transportation network.
出处
《系统管理学报》
北大核心
2009年第6期676-680,共5页
Journal of Systems & Management
基金
教育部博士点基金资助项目(20060286005)
