摘要
应用Vissim仿真系统,结合实测数据,对城市主干路基本路段的交通流进行了分析。通过对仿真模型输出的数据进行分析,发现城市主干道交通流呈现出不同的相位特征,应用"三相交通流理论,在城市主干路基本路段的流量-密度平面中将交通流划分自由流、同步流和堵塞流3个相位,并具体讨论各个相位的交通流特性,确定了各个相位的关键阈值,标定了每个相位的区域范围。
Based on the VISSIM simulation system and the collected related data, the basic segment traffic of urban arterial street was analyzed. Based on the output data of the simulation model, some different phase features were found to be in the basic segment traffic of urban arterial street. Though ＂three-phase traffic theory＂, free flow, synchronized flow, and jam flow were identified in flow rate-density plane of traffic flow in the basic segment traffic of urban arterial street. Finally, the features of three phases were discussed respectively. The function of phase boundaries as well as the key threshold values of each phase was determined.
出处
《交通与计算机》
2008年第5期6-9,共4页
Computer and Communications
基金
国家"十一五"科技支撑计划(批准号:2006BAJ18B03)资助
关键词
交通状态划分
三相交通流理论
自由流
同步流
堵塞流
phase identification
three-phase traffic theory
free flow
synchronized flow
jam flow
