交通运输系统工程与信息 ›› 2018, Vol. 18 ›› Issue (2): 108-115.

• 系统工程理论与方法 • 上一篇    下一篇

基于多源数据融合的城市道路网络宏观基本图模型

金盛 1,沈莉潇 1,贺正冰* 2   

  1. 1. 浙江大学 建筑工程学院,杭州 310058;2. 北京交通大学 交通系统科学与工程研究院,北京 100044
  • 收稿日期:2017-07-14 修回日期:2017-11-20 出版日期:2018-04-25 发布日期:2018-04-25
  • 作者简介:金盛(1982-),男,浙江温州人,副教授,博士生.
  • 基金资助:

    国家自然科学基金/ National Natural Science Foundation of China(91746105, 71501009);浙江省重点研发计划项目/The Key Research and Development Program of Zhejiang (2018C01007).

Macroscopic Fundamental Diagram Model of Urban Network Based on Multi-source Data Fusion

JIN Sheng1, SHEN Li-xiao1, HE Zheng-bing2   

  1. 1. College of Civil Engineering and Architecture, Zhejiang University, Hangzhou 310058, China; 2. Institute of Transportation System Science and Engineering, Beijing Jiaotong University, Beijing 100044, China
  • Received:2017-07-14 Revised:2017-11-20 Online:2018-04-25 Published:2018-04-25

摘要:

宏观基本图(MFD)是描述路网平均流量和平均密度的关系模型,在路网服务水平评估、区域控制和宏观交通建模中具有重要的作用.本文以路网加权流量和加权密度为MFD描述指标,提出了一种融合微波检测器数据和车牌识别数据的MFD构建方法.为了评估不同数据源下路网MFD的有效性,提出了采用状态比指标描述 MFD的差异性.以青岛市实际数据为例,分析了单一数据来源和融合数据下的MFD变化规律.结果表明,在路网中存在不同类型检测器时,融合模型仍能够精确描述路网MFD.

关键词: 交通工程, 宏观基本图, 数据融合, 微波数据, 车牌识别数据, 状态比

Abstract:

The macroscopic fundamental diagram (MFD) is the relationship between average flow and average density of networks and plays an important role in network service level assessment, regional control and macro traffic modeling. In this paper, an MFD method is proposed to fuse the data of the remote traffic microwave sensor and the license plate recognition data by using the networked weighted flow and the weighted density as the MFD description indexes. In order to evaluate the effectiveness of MFD under different data sources, the difference of MFD is described by traffic state ratio. Taking the data of Qingdao City as an example, the MFD’s law of single data source and fusion data are analyzed. The results show that the fusion model can accurately describe the network MFD when there are different types of detectors in the network.

Key words: traffic engineering, macroscopic fundamental diagram, data fusion, microwave data, license plate recognition data, traffic state ratio

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