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论文:2014,Vol:32,Issue(5):725-729 |
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引用本文： |
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刘雨童, 张骏, 史忠科. 汽车启动时安全距离模型的改进及其验证[J]. 西北工业大学 |
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Liu Yu tong, Zhang Jun, Shi Zhong ke. Improvement and Verification of Safety Distance Model When Vehicles Start[J]. Northwestern polytechnical university |
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| 汽车启动时安全距离模型的改进及其验证 |
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| 刘雨童, 张骏, 史忠科 |
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| 西北工业大学 自动化学院, 陕西 西安 710029 |
| 摘要: |
| 为了精确研究在信号灯交叉路口车辆启动时的跟驰行为，提出了一种基于加速度的 Kometani改进模型。在分析车辆行驶行为特征的基础上，结合实际观测的交通数据，对 Kometani 模型进行了验证。针对 Kometani 模型出现的部分点与实际数据趋势不相符等问题，增加了车辆加速度因素并予之改进。改进后的模型考虑了车辆的速度和加速度对于车辆安全距离(即车间距)的共同影响，从而能够更加全面准确地描述交通路口的实际交通现象。采用在交叉路口采集的实际数据，并对改进后的模型进行了验证;通过验证结果与原模型验证结果进行对比分析，表明改进后的模型更符合实际交叉路口车辆启动时的跟驰行为。 |
| 关键词:
加速度反馈
交叉路口
最小二乘估计
MATLAB
交通控制
改进Kometani模型
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| Improvement and Verification of Safety Distance Model When Vehicles Start |
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| Liu Yu tong, Zhang Jun, Shi Zhong ke |
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| Department of Automatic Control, Northwestern Polytechnical University, Xi'an 710129, China |
| Abstract: |
| To study the car-fpllowing behavior of a starting vehicle at an intersection with signal lights,we improvethe Kometani model by taking into account its acceleration and speed.Then we verify the Kometani model by analy-zing the driving behavior characteristics of a vehicle and combining them with actual observed traffic data.The im-proved Kometani model takes into account the joint effects of the acceleration and speed of a vehicle on its safetydistance,namely car spacing,thus being able to more fully and accurately describe the actual traffic conditions atan intersection.Finally we use the data acquired at intersections to verify the improved Kometani model.The re-sults on the comparison of the verification results with the Kometani model verification results,given in Section 3,and their analysis show preliminarily that our improved Kometani model conforms better to the actual car-followingbehavior of a starting vehicle at an intersection. |
| Key words:
acceleration
intersections
least squares approximations
MATLAB
traffic control
improved Komet-ani model
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| 收稿日期: 2014-04-12
修回日期:
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| DOI: |
| 基金项目: 国家自然科学基金(61134004)与西北工业大学科研生创业种子基金(Z2014156)资助 |
| 通讯作者:
Email： |
| 作者简介: 刘雨童(1991-)，女，西北工业大学硕士研究生，主要从事交通信息工程及控制的研究。
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| 相关功能 |
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| 作者相关文章 |
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| 刘雨童 在本刊中的所有文章 |
| 张骏 在本刊中的所有文章 |
| 史忠科 在本刊中的所有文章 |
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参考文献: |
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[2] Hoogendoorn S P，Bovy P H L. State-of-the-Art of Vehicular Traffic Flow Modelling[J]. Journal of System and Control Engi-neering，2001，215(4): 283-303
[3] Rothery R W. Car-Following Models[M]. Monograph on Traffic Flow Theory，Washington D C，1996: 4-42
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[6] 肖永剑，冉启武，杨建国. 基于时间安全余量的跟驰模型研究[J]. 长安大学学报:自然科学版，2010，30(6):90-93Xiao Y J，Ran Q W，Yang J G. New Car Following Model Based on Time Safety Margin[J]. Journal of Chang'an University:Natural Science Edition，2010，30(6): 90-93 (in Chinese)
[7] Kometani E，Sasaki T. Dynamic Behavior of Traffic with a Nonlinear Spacing-Speed Relationship[C]∥Proceedings of the Sym-posium on Theory of Traffic Flow，Research Laboratories，General Motors，1959，105-119 |
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