基于路网效率的城市结点对外交通组织模式

发布时间：2018-05-06 07:30

本文选题：交通工程 + 对外交通　；参考：《东南大学学报(自然科学版)》2014年04期

【摘要】：为定量评价城市结点对外交通模式的合理性,考虑路网均衡状态下的出行成本、路网容量和服务水平等因素,提出了一种改进的路网效率测度指标.应用该指标构造测试路网,分析了不同交通量水平、不同对外交通需求结构下城市结点对外交通组织模式的适用性.研究表明:在城市内部路网富余通行能力不大的情况下,当干线公路交通量小于750 pcu/h时,干线公路可直接接入内部道路系统;当干线公路交通量在750~2 000 pcu/h且主要为出入境交通时,宜将对外交通引入城市结点快速干道系统,通过快速干道系统集中组织对外交通;当干线公路交通量大于2 000 pcu/h且存在较为集中的过境交通时,宜设置直接式过境通道分离过境交通.所提出的路网效率测度指标和研究结果对城市结点对外交通组织方案的决策具有指导意义.
[Abstract]:In order to quantitatively evaluate the rationality of the external traffic mode of urban nodes, an improved measurement index of road network efficiency is proposed considering the travel cost, network capacity and service level under the condition of road network equilibrium. Using this index to construct the test road network, the applicability of the urban node external traffic organization model under different traffic volume levels and different external traffic demand structures is analyzed. The results show that when the traffic volume of the trunk road is less than 750 pcu/h, the trunk highway can directly connect to the internal road system. When the traffic volume of trunk highway is 750000 pcu/h and the main traffic is inbound and outbound traffic, the external traffic should be introduced into the urban node rapid trunk road system, and the external traffic should be centralized through the rapid trunk road system. When the traffic volume of trunk highway is more than 2 000 pcu/h and there is more concentrated transit traffic, direct transit channel should be set up to separate the transit traffic. The proposed network efficiency measurement index and the research results have a guiding significance for the decision of the urban node external traffic organization scheme.
【作者单位】：东南大学交通学院;长沙理工大学道路灾变防治及交通安全教育部工程研究中心;
【基金】：江苏省交通科学研究计划资助项目(07R17)
【分类号】：U491.1

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