混合交通流条件下基于路内停车设置的路段车速阻滞模型  

Road resistance model under mixed traffic flow conditions with curb parking

作　　者：陈峻[1] 梅振宇[2] 王炜[1] 

机构地区：[1]东南大学,江苏南京210096 [2]浙江大学,浙江杭州310027

出　　处：《土木工程学报》2007年第9期95-100,共6页China Civil Engineering Journal

基　　金：国家重点基础研究发展计划(2006CB705500);国家自然科学基金(50308005)

摘　　要：提出机非混合交通流条件下路内停车带设置后的机动车速阻滞模型。以一幅道路断面形式为前提,将混合交通和车辆停放的驶入、驶出对路段车流运行状态的影响表述为摩擦和阻滞效应,引入时间障碍率和空间障碍率参数加以量化分析,选择6条典型路段进行数据调查,在验证基本路阻函数可行性的基础上,分别建立路内停车摩擦效应和阻滞效应影响下的机动车速度-交通流模型。针对模型参数的复杂性特点,设计参数指标聚类和分阶段标定方法,并对一幅道路单向通行和双向通行的相关模型进行具体参数的计算。将实测数据和模型计算结果进行对比可以发现,整体拟合效果良好,能够反映混合交通流条件下路内停车设置对机动车交通运行的实际状态。This paper presents a set of road resistance functions for mixed traffic flow by considering the impact of curb parking. The composition of mixed traffic flow and arrival-leaving of the parking vehicles are analyzed to express the jam effects, and the influences of road width and parking mode are analyzed to express the friction effects. Such factors are quantitatively analyzed by using the time interruption rate and the space interruption rate. After selecting six typical roads for the observation data, the basis velocity-flow model is validated and the frictional-impacted model and the obstruction-impacted model are formulated. Considering the complexity of the model parameters, methods are provided on how to cluster and calculate the model parameters. Comparison with the real data indicates that the revised model can reflect the status of road traffic flow with effective curb parking.

关 键 词：路内停车 混合交通 摩擦 阻滞 路阻函数 

分 类 号：U491.7[交通运输工程—交通运输规划与管理]