Urban Space Reallocation: A Network Design Approach

2022 Fiscal Year Final Research Report

• Project/Area Number: 20K14899
• Research Category: Grant-in-Aid for Early-Career Scientists
• Allocation Type: Multi-year Fund
• Review Section: Basic Section 23030:Architectural planning and city planning-related
• Research Institution: Shibaura Institute of Technology
• Principal Investigator: Oyama Yuki 芝浦工業大学, 工学部, 准教授 (20868343)
• Project Period (FY): 2020-04-01 – 2023-03-31
• Keywords: 街路空間再配分 / 交通ネットワーク設計 / 人中心 / 交通量配分 / 経路選択モデル

Outline of Final Research Achievements

Human-centric urban space designs have been attracting growing attention in recent years. Along this goal, this research aims to develop a mathematical analysis method for reallocating urban spaces, which are currently used mainly for cars, to people without significantly reducing the convenience of existing traffic.
Specifically, we have developed the following hour models: (1) an evaluation model of traffic congestion that could be caused by network design, (2) an evaluation model of positive effects on pedestrians by the space reallocation, (3) a multimodal network traffic assignment model that integrates both models, and (4) an optimal network design model that explicitly considers the effects on traffic congestion and pedestrian utilities.

Free Research Field

都市計画

Academic Significance and Societal Importance of the Research Achievements

人中心の都市空間再設計を進める上で，「いかにして既存交通の利便性を損なうことなく人々の活動にとって魅力ある空間を生み出すか」が，重要かつ困難な課題である．本研究は，そうした都市空間再設計において，適切なプロジェクトの対象地選定 (例: どの街路を歩行者専用/優先にすべきか) に答えられるための手法開発を実施したものであり，今後の都市計画・政策決定に重要な示唆を与えるものと考える．