Traffic state estimation with assimilation of traffic flow simulation and data

2014 Fiscal Year Final Research Report

• Project/Area Number: 25630214
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Civil engineering project/Traffic engineering
• Research Institution: Tokyo Institute of Technology
• Principal Investigator: ASAKURA Yasuo 東京工業大学, 理工学研究科, 教授 (80144319)
• Co-Investigator(Kenkyū-buntansha): IRYO Takamasa 神戸大学, 大学院工学研究科, 教授 (10362758) ; KUSAKABE Takahiko 東京工業大学, 大学院理工学研究科, 助教 (80604610) ; FUKUDA Daisuke 東京工業大学, 大学院理工学研究科, 准教授 (70334539)
• Project Period (FY): 2013-04-01 – 2015-03-31
• Keywords: 交通工学 / 交通流 / 交通状態推定

Outline of Final Research Achievements

Continuous and long-term observed traffic flow data became available owing to large growth of database technologies. The purpose of this study was to develop a method to estimate stochastic traffic state by implementing an assimilation method. The proposed method relied on both traffic flow models and statistical estimation models. The estimation by the traffic flow model is assimilated by the statistical model which relies on the large amount of data. In validation analysis of the proposed methods, this study showed that the proposed model can detect singular traffic states which was generally difficult to be detected.

Free Research Field

交通工学