华南理工大学学报(自然科学版) ›› 2016, Vol. 44 ›› Issue (4): 115-122.doi: 10.3969/j.issn.1000-565X.2016.04.017

• 交通与运输工程 • 上一篇    下一篇

基于时空贝叶斯模型的行程时间可靠性预测

杨庆芳1,2,3 韦学武2 林赐云1,2,3† 李志林2 刘翔宇2   

  1. 1. 吉林大学 汽车仿真与控制国家重点实验室,吉林 长春 130022; 2. 吉林大学 交通学院,吉林 长春 130022;3. 吉林大学 吉林省道路交通重点实验室,吉林 长春 30022
  • 收稿日期:2015-08-23 修回日期:2015-12-15 出版日期:2016-04-25 发布日期:2016-04-12
  • 通信作者: 林赐云(1980-) ,男,讲师,主要从事智能交通运输系统研究 E-mail:linciyun@jlu.edu.cn
  • 作者简介:杨庆芳(1966-) ,女,教授,主要从事智能交通运输系统研究. E-mail: yangqf@ jlu. edu. cn
  • 基金资助:
    国家科技支撑计划项目( 2014BAG03B03) ; 山东省省管企业科技创新项目( 20122150251-5)

Reliability Prediction of Travel Time Based on Spatio-Temporal Bayesian Model

YANG Qing-fang1,2,3WEI Xue-wu2 LIN Ci-yun1,2,3 LI Zhi-lin2 LIU Xiang-yu2   

  1. 1.State Key Laboratory of Automotive Simulation and Control,Jilin University,Changchun 130022,Jilin,China; 2.College of Transportation,Jilin University,Changchun 130022,Jilin,China; 3.Jilin Province Key Laboratory of Road Traffic,Jilin University,Changchun 130022,Jilin,China
  • Received:2015-08-23 Revised:2015-12-15 Online:2016-04-25 Published:2016-04-12
  • Contact: 林赐云(1980-) ,男,讲师,主要从事智能交通运输系统研究 E-mail:linciyun@jlu.edu.cn
  • About author:杨庆芳(1966-) ,女,教授,主要从事智能交通运输系统研究. E-mail: yangqf@ jlu. edu. cn
  • Supported by:
    Supported by the National Key Technology Research and Development Program the Ministry of Science and Technology of China( 2014BAG03B03)

摘要: 为了全面、准确地分析路段行程时间的时空分布,将路段的时间序列和空间关联关系纳入两个邻近路段的行程时间可靠性预测过程. 在时间维度上,通过广泛使用的卡尔曼滤波预测行程时间; 在空间维度上,根据离散马尔科夫链构建上下游路段行程时间的关联模型. 进而构建了时空贝叶斯模型( ST-BM) ,将时间维度和空间维度的行程时间分布进行融合,从而预测路段行程时间可靠性. 实例分析结果表明,相比于先验分布数据,文中模型将两个实测邻近路段的可靠性预测误差分别降低了45. 7% 和29. 2%,验证了ST-BM模型的有效性.

关键词: 高速公路, 行程时间可靠性, 时空贝叶斯模型, 时空关联, Markov 链

Abstract: In order to fully and accurately analyze the spatio-temporal distribution of link travel time,this paper incorporates the time sequence and the spatial relationship between two links into two adjacent links for travel time reliability prediction.From the temporal dimension,the widely-used Kalman filtering is adopted to predict the travel time; while from the spatial dimension,the correlation model describing the travel time between downstream and upstream links is built based on the discrete Markov chain model.Then,a spatio-temporal Bayesian model ( STBM) is constructed to fuse the temporal and spatial travel time distributions for predicting the travel time reliability of road links.Case study results show that,as compared with the prior distributions,the proposed model decreases the reliability prediction error by 45. 7% and 29. 2% respectively for the two measured adjacent links,which verifies the effectiveness of the ST-BM model.

Key words: expressway, travel time reliability, spatio-temporal Bayesian model, spatio-temporal correlation, Markov chain

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