摘要
提出了一种基于流体比拟的交通流理论模型 ,并将其应用于道路通行能力计算及服务水平的评价 .提出了用最大波速计算通行能力的公式 .即使只测到了低密度的数据 ,仍然可以较准确地计算其实际通行能力 .提出了用量纲一相对交通压力评价道路路段服务水平的指标体系 .根据5 min时段实测数据 ,对广佛高速公路和沪宁高速公路 1车道和 2车道进行了“动态”服务水平模拟监测 .
This paper proposes a traffic flow theory based on assimilating relationship between traffic flow and fluid flow. The theory is applied to calculating capacity and evaluating service level of road sections. A highway capacity calculating model for road sections is set up by using the maximum wave velocity. Even if having the data in low density,the actual capacity can be calculated correctly. By non-dimensional traffic pressure,an evaluating index system for service level of highway is set up. According to the 5min data,the service level of real-time state of Guangzhou-Foshan freeway and Shanghai-Nanjing freeway is evaluated.
出处
《武汉理工大学学报（交通科学与工程版）》
北大核心
2004年第4期511-514,共4页
Journal of Wuhan University of Technology（Transportation Science & Engineering）
基金
国家自然科学基金 (批准号 :5 0 2 780 2 7)
湖北省教育厅项目资助 (批准号 :2 0 0 3 B0 0 1)
关键词
交通流
交通压力
通行能力
服务水平
traffic flow
traffic pressure
capacity
service level
