A study on roundabout performance evaluation considering pedestrians

2015 Fiscal Year Final Research Report

• Project/Area Number: 25289163
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Partial Multi-year Fund
• Section: 一般
• Research Field: Civil engineering project/Traffic engineering
• Research Institution: Nagoya University
• Principal Investigator: Nakamura Hideki 名古屋大学, 環境学研究科, 教授 (10212101)
• Co-Investigator(Kenkyū-buntansha): IRYO MIHO (ASANO MIHO) 東京大学, 生産技術研究所, 准教授 (80469858)
• Co-Investigator(Renkei-kenkyūsha): SUZUKI KOJI 名古屋工業大学, 大学院工学研究科, 准教授 (30362320)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Keywords: ラウンドアバウト / 交差点 / 交通容量 / 歩行者 / シミュレーション

Outline of Final Research Achievements

This study aims at developing a methodology for entry capacity estimation of roundabouts in Japan considering conflicts between pedestrians and vehicles. Simulation analyses were carried out with respect to impacts of geometry and user behavior conditions that are typical in Japan on entry capacity, and by using their results a multiple regression model for entry capacity estimation was developed. The model was validated with data observed at Roppontsuji roundabout in Karuizawa, Nagano. It was found that the estimation performance of the proposed model was very satisfactory while the existing methodology overestimates the capacity.

Free Research Field

交通工学