Development of Performance Evaluation Methodology on Urban Structure for Urban Planning in Japan

2018 Fiscal Year Final Research Report

• Project/Area Number: 16K06668
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Town planning/Architectural planning
• Research Institution: Tokyo City University
• Principal Investigator: Akashi Tatsuo 東京都市大学, 都市生活学部, 教授 (00450346)
• Co-Investigator(Kenkyū-buntansha): 西澤 明 東京大学, 空間情報科学研究センター, 特任教授 (90597816)
• Project Period (FY): 2016-04-01 – 2019-03-31
• Keywords: アクセシビリティ指標 / 都市構造 / 政策評価 / 公共交通

Outline of Final Research Achievements

The purpose of this research is to develop a practical performance evaluation method on urban structure, which consists of public transportation network services and urban land use allocations, reflecting functionality and convenience in terms of people’s dairy activities of the city, not depending on personal automobiles. We improved previous accessibility indicators to clearly describe the condition as population ratio who can access within certain expected time by using public transport, and applied them to four cities which have approximately same population of 200,000 but have different figure of urban structure, and demonstrated that the indicators are useful for describe present situation, effects of improvement plans, and their limitations. We also did a simulation that changing frequency of public transportation services, and clarified that there is a clear advantage of axis figured urban structure in terms of improving dairy accessibility for the citizens.

Free Research Field

都市計画

Academic Significance and Societal Importance of the Research Achievements

本研究成果の意義は、日本国の都市政策が「コンパクト＋ネットワーク」の都市構造を目指している中、この政策に的確に対応する目標の設定、現状の認識および達成度の測定に寄与する実用的な数値指標と評価法を提示したことにある。また、学術的には、これまでの内外の学術研究が多様な独自指標の開発・精緻化に傾いていたところ、行政実務に応用可能な性能診断方法を特定し、指標の開発・改善の段階から、指標を用いて多様な都市そのものの研究を深める段階へと進めたことに意義があると考える。