城市地下道路速度分布特性分析

Speed Distribution Characteristic on Urban Underground Roads

随着城市化和机动化水平的提高,我国许多大城市交通问题日趋严重。受土地资源、环境保护等约束条件的限制,城市路面交通面临发展的极限,地下道路的规划建设得到迅速发展。将常见的地下道路分为小汽车专用道路、混合通行道路和货车地下通道等三种形式,分析了地下道路及环境特征。通过对实际交通调查数据的统计分析,得到了不同交通运行条件、外界环境条件、流量范围条件下的地下道路交通流速度分布特性。

With urbanization and motorization moving forward,the trip volume has brought much more load to urban road network in many cities.By the land resources,environmental protection and other constraints have limited the development of urban road traffic,the planning and construction of urban underground roads have developed rapidly in recent years.The urban underground roads are divided into different types,such as car-only underground road,mixed-traffic underground road,and truck-only underground road.And the characteristics of the underground roads and their traffic environment are analyzed.Based on Traffic survey data,a large number of measured data,the urban tunnel speed distribution characteristic are analyzed on different running conditions,environment conditions,and traffic volume conditions.