城市道路路段通行能力计算优化模型  

A Computational Optimization Model for the Capacity of Urban Roads

作　　者：吴小丹[1] 李敏桥[1] 

机构地区：[1]北京理工大学珠海学院,广东珠海519085

出　　处：《交通信息与安全》2015年第6期108-113,共6页Journal of Transport Information and Safety

摘　　要：在分析城市道路路段通行能力计算模型的基础上,建立考虑交通管理因素对路段通行能力影响的计算优化模型;在分析交通管理因素的基础上,建立针对交通管理因素中的步行管理因素的折减系数计算模型;根据珠海路段的车速、交通量调查数据,验证路段人行横道无步行管理时的折减系数计算模型;最后应用Vissim软件仿真有无步行管理2种情况路段的最大交通量,验证路段通行能力计算优化模型。结果表明:2种情况下路段通行能力的计算值与仿真值的相对误差在5%以内,考虑交通管理因素的路段通行能力计算优化模型是合理的,弥补了原计算模型只考虑道路条件和交通条件这2个因素的不足。Based on the analysis of computation models of road capacity,an optimization model that considers the impacts of traffic management on road capacity is developed.Based on analysis to several actions related to traffic management,a computation model using the reduction factor to consider the action related to pedestrian management factors is also developed.According to the survey data of traffic speed and volume collected on road sections in Zhuhai,the model with or without the impact of pedestrian management is verified.Vissim is used to simulate the maximum traffic volume under the above 2 conditions.The proposed optimization model of road capacity is also verified.The results show that relative errors between the theoretical capacity and the simulated values under the 2 different conditions are within 5%.It is found that the optimization model that considers the actions related to the above traffic management is reasonable and it also is superior to the traditional models which only consider road and traffic condition.

关 键 词：城市交通 路段通行能力 优化模型 交通仿真 影响因素 折减系数 

分 类 号：U491[交通运输工程—交通运输规划与管理]