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论文:2014,Vol:32,Issue(1):118-122 |
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引用本文： |
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赖林, 胡永红, 史忠科. 基于车头间距与前车速度的改进优化速度模型[J]. 西北工业大学 |
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Lai Lin, Hu Yonghong, Shi Zhongke. An Improved Optimal Velocity Model Based on Space Headway and Speed of Front Vehicle[J]. Northwestern polytechnical university |
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| 基于车头间距与前车速度的改进优化速度模型 |
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| 赖林, 胡永红, 史忠科 |
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| 西北工业大学 自动化学院, 陕西 西安 710072 |
| 摘要: |
| 为了更加准确地描述城市交叉路口中车辆间的跟驰行为,分析处于跟驰状态下车辆间的跟驰行为特性,结合交叉路口采集的实际数据,对优化速度模型进行了验证。针对优化速度模型与实际数据误差较大的问题,通过简化时变期望间距的表达式,添加与两车车头间距与前车速度相关的加速度补偿项,得到改进后的优化速度模型,结合实测数据对该改进模型进行验证,将结果与原模型进行对比分析。从实验结果可以看出,改进后的优化速度模型与交叉路口中车辆间的实际跟驰行为更为接近。 |
| 关键词:
加速度
十字路口
MATLAB
模型
速度
车头间距
改进优化速度模型
车辆跟驰行为
城市交通
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| An Improved Optimal Velocity Model Based on Space Headway and Speed of Front Vehicle |
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| Lai Lin, Hu Yonghong, Shi Zhongke |
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| Department of Automatic Control, Northwestern Polytechnical University, Xi'an 710072, China |
| Abstract: |
| In our opinion,the optimal velocity(OV) model cannot accurately describe the car-following behavior of vehicles at an urban intersection,so we use the actual data collected at the intersection to verify the OV model; the verification results,given in Figs.1 and 2,and their analysis show that the OV model has inadequate response frequency,too big acceleration and a big difference from the actual data.Therefore,we propose an improved OV model by simplifying the expressions of time-varying anticipated space,adding the item of compensation for acceleration that is related to front vehicle velocity and headway space and taking into account the effects of headway space and front vehicles on acceleration.We then use the actual data to simulate and verify our improved OV model and compare its simulation results with those of the OV model without improvement.The simulation results,given in Figs.3 and 4 and Table 1,and their analysis show preliminarily that our improved OV model can more accurately describe the actual car-following behaviors of vehicles at the intersection. |
| Key words:
acceleration
intersections
MATLAB
models
velocity
headway space
improved OV model
carfollowing behavior
urban traffic
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| 收稿日期: 2013-04-02
修回日期:
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| DOI: |
| 基金项目: 国家自然科学基金重点项目(61134004)资助 |
| 通讯作者:
Email： |
| 作者简介: 赖林(1990-),西北工业大学硕士研究生,主要从事交通流理论及交通图像处理等研究。
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| 相关功能 |
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| 作者相关文章 |
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| 赖林 在本刊中的所有文章 |
| 胡永红 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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[7] Tang T Q, Li C Y, Huang H J. A New Car-Following Model with the Consideration of the Driver's Forecast Effect[J]. Physics Letters A, 2010, 374(38): 3951-3956
[8] Helbing D. Derivation of Non-Local Macroscopic Traffic Equations and Consistent Traffic Pressures from Microscopic Car-Following Models.∥Modelling and Optimisation of Flows on Networks[M]. Springer Berlin Heidelberg, 2013: 247-269
[9] Ge H X, Zhu H B, Dai S Q. Effect of Looking Backward on Traffic Flow in a Cooperative Driving Car Following Model[J]. The European Physical Journal B-Condensed Matter and Complex Systems, 2006, 54(4): 503-507
[10] 李迎峰, 史忠科, 周致纳, 等. 基于时变期望车距与最大车速的跟驰模型[J]. 交通与计算机, 2008, 26(3): 1-4 Li Y F, Shi Z K, Zhou Z N, et al. Car-Following Model Based on Time-Variable Expectation-Headway and Maximal Velocity [J]. Computer and Communications, 2008, 26(3): 1-4 (in Chinese) |
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