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浙江大学学报(工学版)
浙江大学学报(工学版)  2017, Vol. 51 Issue (9): 1727-1734    DOI: 10.3785/j.issn.1008-973X.2017.09.007
土木与交通工程     
基于时空相关性的交通流故障数据修复方法
王薇1,2, 程泽阳1, 刘梦依1,3, 杨兆升1,2
1. 吉林大学 交通学院, 吉林 长春 130022;
2. 吉林大学 吉林省道路交通重点实验室, 吉林 长春 130022;
3. 山东省交通规划设计院, 山东 济南 250000
Repair method for traffic flow fault data based on spatial-temporal correlation
WANG Wei1,2, CHENG Ze-yang1, LIU Meng-yi1,3, YANG Zhao-sheng1,2
1. College of Transportation, Jilin University, Changchun 130022, China;
2. Jilin Provence Key Laboratory of Road Traffic, Jilin University, Changchun 130022, China;
3. Shandong Provincial Key Communications Planning and Design Institute, Jinan 250000, China
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摘要：

为及时对高速公路交通流故障数据进行有效修复，综合考虑交通流数据的时空特性，提出基于3D形函数的时空插值修复方法.以时间间隔、距离和时滞参数作为相关数据的提取依据，以高速公路实际数据对所提出方法进行验证；将实验结果与采用时间序列法、空间插值法、基于灰色残差GM模型以及基于统计相关分析的方法得到的结果进行对比.结果表明，该方法的修复结果优于时间序列法和空间插值法，并且修复误差低于其他方法.其中，与基于灰色残差GM模型和基于统计相关分析的方法相比，该方法的修复结果的均绝对误差分别降低了21.33%和43.54%，均方根误差分别降低了12.87%和35.08%.该方法的修复结果的平均绝对值误差率比基于统计相关分析的方法降低了40%.这表明研究中所提方法的修复精度更高，是一种有效的数据修复方法.
Abstract:

Considering the spatial-temporal characteristics of the traffic flow data, a spatial-temporal interpolation repair method based on 3D shape function was proposed to effectively repair the fault data of freeway traffic flow in time. The time interval, distance and time delay parameters were chosen as the extracted evidences of the relevant data, and the proposed method was validated through the actual data of freeway; while, the time series method, the spatial interpolation method, the method based on residual error GM model and the method based on statistical correlation analysis were selected as comparative approaches. Results show that the repair results of the proposed method are better than the results by time series method and spatial interpolation method; in addition, the repair error is lower than other methods. Compared with the method based on residual error GM model and the method based on statistical correlation analysis, the absolute error of the proposed method are reduced by 21.33% and 43.54%, respectively; the root-mean-square error are reduced by 12.87% and 35.08% respectively. The average absolute error rate of the proposed method are reduced by 40% compared with the method based on statistical correlation analysis, which illustrates that the repair precision of the proposed approach is more accurate and it is a kind of effective fault data repair approach.
收稿日期: 2016-07-16 出版日期: 2017-08-25
CLC:  U491  
基金资助:

国家科技支撑计划资助项目（2014BAG03B03）；国家留学基金资助项目.
通讯作者: 刘梦依,女,助理工程师.orcid.org/0000-0002-5664-4599.     E-mail: 663112954@qq.com
作者简介: 王薇(1977-),女,副教授,博士,从事智能交通系统关键技术及理论研究.orcid.org/0000-0003-4494-4145.E-mail:wwei@jlu.edu.cn
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引用本文:

王薇, 程泽阳, 刘梦依, 杨兆升. 基于时空相关性的交通流故障数据修复方法[J]. 浙江大学学报(工学版), 2017, 51(9): 1727-1734.

WANG Wei, CHENG Ze-yang, LIU Meng-yi, YANG Zhao-sheng. Repair method for traffic flow fault data based on spatial-temporal correlation. JOURNAL OF ZHEJIANG UNIVERSITY (ENGINEERING SCIENCE), 2017, 51(9): 1727-1734.

链接本文:

http://www.zjujournals.com/eng/CN/10.3785/j.issn.1008-973X.2017.09.007    或    http://www.zjujournals.com/eng/CN/Y2017/V51/I9/1727

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