Studies on the appropriate performance evaluation method for ITS information communication networks and the effect of reducing traffic accidents

2021 Fiscal Year Final Research Report

• Project/Area Number: 19K11918
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Review Section: Basic Section 60060:Information network-related
• Research Institution: Saitama University
• Principal Investigator: Hasegawa Takaaki 埼玉大学, 理工学研究科, 教授 (00189531)
• Project Period (FY): 2019-04-01 – 2022-03-31
• Keywords: ITS情報通信 / コネクテッドカー / マイクロスコピック交通流シミュレータ / T秒Rm評価法 / 安全運転支援システム / 安全性評価 / センサ / 効率と安全

Outline of Final Research Achievements

Using significantly renewed microscopic traffic flow simulators including sensors and ITS communication systems from the simulator that our group have developed since 1997, studies on the appropriate evaluation method for ITS information and communication networks including sensors and their traffic accident reduction effect have been conducted. In this research, using the evaluation method of the communication system that evaluates the communication between vehicles that enter within R [m] within T seconds from moment to moment, to avoid the overengineering requirements of the ITS information communication systems, the accident reduction effects of warning-type safety driving support systems using the ITS communication system are evaluated. It also includes the effect of reducing accidents in autonomous driving, and the evaluation of the relationship between "efficiency" and "safety" of traffic flows, including multimode traffic society and super-adaptive signal control methods.

Free Research Field

システム創成情報学

Academic Significance and Societal Importance of the Research Achievements

「コネクテッドカー」に代表される車の情報共有による事故削減効果は、ITS情報通信システムの普及が必要ですが、システムへの要求性能が過大になると実現が難しくなります。本研究ではまず、評価基盤を開発し、本当に必要な通信に限って性能評価するITS通信システムの評価方法を検討し、開発した評価基盤で警告型安全運転支援システムの事故削減効果を評価しました。さらに、マルチモード交通社会や高度に適応的な交通信号制御方式も含めて、信号化交差点における交通流の「効率」と「安全性」の関係も明らかにしました。