| 基于交通密度的城市快速路交织区长度设计研究 |
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| 引用本文： | 韦正敏,赵庆鑫.基于交通密度的城市快速路交织区长度设计研究[J].交通标准化,2014(23):8-13. |
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| 作者姓名： | 韦正敏 赵庆鑫 |
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| 作者单位： | 1. 同济大学道路与交通工程教育部重点实验室,上海,201804
2. 上海市政设计研究总院,上海,200092 |
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| 摘 要： | 交织区是快速路主线通行的交通瓶颈和事故多发地。合理的交织区长度对提高交织区服务水平和通行能力具有重要意义。鉴于此，分析了交织区运行的各个影响因素，提出了基于密度指标的交织区长度设计方法，采用试算法给出了不同条件组合下的交织区长度设计值。结果表明，应用密度指标进行交织区长度设计具有一定的可行性。
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| 关 键 词： | 交织区长度 通行能力 服务水平 交通密度 |
Length Design of Urban Expressway Weaving Segment Based on Traffic Density |
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| WEI Zheng-min,ZHAO Qing-xin.Length Design of Urban Expressway Weaving Segment Based on Traffic Density[J].Communications Standardization,2014(23):8-13. |
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| Authors: | WEI Zheng-min ZHAO Qing-xin |
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| Institution: | WEI Zheng-min, ZHAO Qing-xin (1. Key Laboratory of Road and Traffic Engineering of the Ministry of Education, Tongji University, Shanghai 201804, China; 2. Shanghai Municipal Engineering Design Institute (Group) Co., Ltd., Shanghai 200092, China) |
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| Abstract: | Weaving segment is the bottleneck of expressway mainline and the accident-prone area. Suitable length of weaving segment has an important significance to improve its capacity and level of service. A design method of length of weaving segment based on traffic density was proposed after the factors which influencded the operation of weaving segment were analyzed. The design values under different conditions were given by the trial means. Results show that it is of some feasibility to design length of weaving segment by using the traffic density index. |
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| Keywords: | length of weaving segment traffic capacity level of service traffic density |
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