摘要
分析与城市路段行程时间函数分类相关的路段属性,根据其中关键属性的组合对城市路网的所有路段进行分类;以市域内车辆自动检测仪器提供的速度和流量数据为基础,通过对速度-流量关系的分析拟合,标定各类路段的通行能力、自由流速度、流量达到通行能力时的临界速度这三个关键参数从而确定函数模型,并通过杭州市实例进行了验证。
The attributes which are involved in the classification of link travel time functions of urban roads are analyzed,and then the whole links of the road network are classified according to the combinations of these key attributes.The three key parameters,capacity,free flow speed and the speed at capacity,are calibrated based on the data that is detected by the automatic vehicle detectors,meanwhile function mode is defined.At last it takes the city of Hangzhou as an example to illustrate the procedure.
出处
《交通标准化》
2011年第7期134-138,共5页
Communications Standardization
