城市高架道路出口匝道路边型接地纵向位置研究  

Research into Longitudinal Location of urban expressway off-ramp grounding joint

作　　者：龙科军[1] 杨晓光[2] 

机构地区：[1]同济大学,上海200092 [2]长沙理工大学,长沙410076

出　　处：《交通与计算机》2004年第5期3-5,共3页Computer and Communications

基　　金：国家自然科学基金项目资助 ( 70 1 2 2 2 0 1 )

摘　　要：文章在分析城市高架下匝道接地点前方交通流特性基础上 ,针对典型的匝道接地类型 ,建立了衔接区通行能力和长度的关系模型 ,以通行能力均衡性为约束条件 ,建立了匝道接地点纵向位置的计算模型 ,利用 Visual C++编写了计算程序 ,对算例进行计算、分析 ,使模型得到了论证。对于其它类型的匝道接地模式 。Based on the analysis of traffic characteristic in the front area of the urban expressway off-ramp grounding joint and according to the typical ramp grounding location, this paper has set up the model for the relationship of capacity and weaving length in weaving section. Constrained by capacity balancing, this paper has presented the model for computing the off-ramp grounding location. The model has been proved by an example through C++ programming. Furthermore, the method presented in this paper can be applied in other ramps with different grounding modes.

关 键 词：出口匝道 高架道路 通行能力 交通流 位置 算例 计算模型 接地点 接地类型 计算程序 

分 类 号：U412[交通运输工程—道路与铁道工程] U491