| 信号道路网动态路段行程时间有度排队模型 |
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| 引用本文： | 李硕,范炳全. 信号道路网动态路段行程时间有度排队模型[J]. 系统工程学报, 2005, 20(6): 591-599 |
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| 作者姓名： | 李硕 范炳全 |
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| 作者单位： | 1. 上海理工大学交通运输系统研究中心,上海,200093;湖南大学土木工程学院,湖南,长沙,410082
2. 上海理工大学交通运输系统研究中心,上海,200093 |
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| 摘 要： | 通过分析确定当路段动态驶入流率为小交通流和远超饱和交通流时明显地存在路段行程时间与车辆排队长度有关．因此，提出了一个全新的信号道路网有度排队模型（SQ模型），确定在各种不同驶入流率的形态下动态路段行程时间，其中既包括自由流行程时间，又包括出口处排队延误时间及其相关的计算模型和方法，并用实例分析并检验了模型的计算效率．
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| 关 键 词： | 动态路网 路段行程时间 驶入流率 驶出流率 延误 信号 交叉口 |
| 文章编号： | 1000-5781（2005）06-0591-09 |
| 收稿时间： | 2004-01-02 |
| 修稿时间： | 2004-01-022004-10-18 |
Link travel time models for dynamic traffic assignment under signalized networks |
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| LI Shuo,FAN Bing-quan. Link travel time models for dynamic traffic assignment under signalized networks[J]. Journal of Systems Engineering, 2005, 20(6): 591-599 |
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| Authors: | LI Shuo FAN Bing-quan |
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| Affiliation: | 1. Center of Research on Transports System, University of Shanghai for Science and Technology, Shanghai 200093, China; 2. College of Civil Engineering, Hunan University, Changsha 410082, China |
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| Abstract: | This paper presents that the dynamic link travel times occurred between light-flow and over-flow traffic inflow patterns are relative to the queue length.So under the various inflow rates between the two extreme cases the dynamic link travel time should cover free flow travel time as well as delayed time at the exit of link.According to this analysis this paper proposes a new model called spatial queue(SQ) model in signalized road network,which considers both the free flow travel time as well as delayed time at the exit of link,and studies their formulation as well as its computation efficiency. |
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| Keywords: | dynamic network link travel time inflow rate outflow rate delay signal intersections |
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