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多因素耦合作用下的停放车辆行驶时间模型 被引量:1

A Travel Time Model of Parking Vehicles under Multi-factor Coupling
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摘要 以进出城市路外停车场的停放车辆为研究对象,分析了车辆在进入停车场的过程中所受到的主要影响因素,并将其行驶时间定义为穿越等待时间与穿越行驶时间。首先,通过理论分析与实测数据,根据非机动车流的不同群间隙大小,构建了穿越等待时间的计算模型;然后,基于出入口处的道路条件、停放车辆尺寸和非机动车流的群间隙特性,构建了穿越行驶时间的计算模型,并以南京某停车场的实测数据进行了验证分析;最后,基于车辆停车率的实测数据,对不同非机动车道宽度与非机动车流量组合条件下的穿越时间进行了敏感性分析,主要结论有:相对于非机动车道宽度而言,穿越时间受非机动车流量大小的影响更为明显;在相同的非机动车流量下,当车道越宽时,非机动车的行驶空间越大,行驶路径选择的自由度越高,此时对停放车辆的干扰越小,特别是当非机动车道宽度大于6 m时,穿越时间受其影响变化较小;穿越时间的变化与非机动车道宽度成反比,当车道越窄时则自由度降低,对停放车辆的干扰增大,特别是当非机动车道宽度小于5 m时,穿越时间受其影响变化显著。文中相关研究结论对于优化城市路外停车场出入口的交通组织与管理具有一定的现实意义。 Taking the parking vehicles entering and leaving urban off-street parking lot as the study object, the main influencing factors of vehicles entering parking lot are analyzed, and the travel time is defined as crossing waiting time and crossing travel time. First, according to different group gap sizes of non-motor vehicle flow, a model for calculating crossing waiting time is established by theoretical analysis and measured data. Second, based on the road conditions at entrance and exit, parking vehicle size and group gap characteristics of non-motor vehicle flow, a model for calculating crossing travel time is established, and the model is verified by measured data of a selected parking lot in Nanjing. Finally, based on the measured data of vehicle parking rate, the sensitivities of crossing time under the conditions of different non-motorized lane widths and non-motor vehicle flow combinations are analysed. The result shows that(1) The influence of non-motor vehicle flow on crossing time is more obvious than that on non-motorized lane width.(2) Under the same non-motorized traffic volume, the wider the lane, the larger the driving space of non-motorized vehicles,the higher the degree of freedom of path selection, and the smaller the interference to parked vehicles at this time, especially when the non-motorized lane width is greater than 6 m, the time travel time is less affected by its impact.(3) The change of crossing time is inversely proportional to the width of non-motorized lane. When the lane is narrower, the degree of freedom decreases and the interference to parked vehicles increases, especially when the non-motorized lane width is less than 5 m. The relevant research conclusions have certain practical significance for optimizing the traffic organization and management of urban off-street parking lot entrances.
作者 邓社军 钟煜一 叶晓飞 陈峻 于世军 DENG She-jun;ZHONG Yu-yi;YE Xiao-fei;CHEN Jun;YU Shi-jun(School of Architecture Science and Engineering,Yangzhou University,Yangzhou Jiangsu 225009,China;School of Maritime and Transportation,Ningbo University,Ningbo Zhejiang 315211,China;School of Transportation,Southeast University,Nanjing Jiangsu 210000,China)
出处 《公路交通科技》 CAS CSCD 北大核心 2019年第4期125-134,共10页 Journal of Highway and Transportation Research and Development
基金 国家自然科学基金项目(51408322 51638004)
关键词 交通工程 行驶时间 模型 路外停车 影响 非机动车流 traffic engineering travel time model off-street parking influence non-motorized vehicle flow
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