| 引用本文： |
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陈栋,刘泽高,贾丽斯,薛郁.信号交叉口改进延误模型及实测分析[J].广西科学,2015,22(2):231-236. [点击复制]
- CHEN Dong,LIU Ze-gao,JIA Li-si,XUE Yu.Improved Model of Delay and Measurement Analysis at Signalized Intersection[J].Guangxi Sciences,2015,22(2):231-236. [点击复制]
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| 摘要: |
| [目的]为了给国内城市信号交叉口规划设计和服务评价提供科学依据,研究城市交叉口延误模型。[方法]对比Australian延误模型和Canadian延误模型,提出改进的延误模型,再采用牌照法,对饱和度接近1的道路交通延误进行实测,并把实测结果与3个模型进行对比。[结果]改进的延误模型在饱和度较低和较高的情况下,与Australian延误模型和Canadian模型的模拟数据很接近;在饱和度接近1时,改进的延误模型与实测结果能较好吻合;改进模型与Brilon和Wu的马尔科夫链方法比较,形式简单,计算简便,可操作性好。[结论]改进的模型适合用于平面混合低速的城市交叉口道路延误分析。 |
| 关键词: 城市路网 车辆延误 交通实测 牌照法 |
| DOI： |
| 投稿时间：2014-08-25修订日期：2014-09-25 |
| 基金项目:国家自然科学基金(批准号:11262003和11047003)和广西壮族自治区研究生创新基础项目(批准号:105930903077)资助。 |
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| Improved Model of Delay and Measurement Analysis at Signalized Intersection |
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CHEN Dong, LIU Ze-gao, JIA Li-si, XUE Yu
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| (Institute of Physics Science and Engineering, Guangxi University, Nanning, Guangxi, 530004, China) |
| Abstract: |
| [Objective] In urban road network, vehicles delay generally approaches 80% at the intersection.Survey and investigation of delay at the intersection play an important role in the practical significance for urban traffic management and control.[Methods] Compared to Australian delay model and Canadian delay model, an improved delay model was proposed in this paper.The delay was measured by the License Number Matching Method when the saturation was closed to 1. And then the measured results were compared with that of the three models[Results] The improved delay model is similar to Australian delay model and Canadian delay model in the case of lower and higher saturation, respectively.When the saturation is close to 1, the improved delay model is better agreement with the measured results and approaches high precision.Compared with Markov chain method proposed by Brilon and Wu, it is so simple, convenient and easy-to-operate for the improved delay model.[Conclusion] The improved model is suitable for analyzing the delay that the urban road intersections are mixing low speed. |
| Key words: urban road networks vehicle delay survey of traffic the license number matching method |
