Urban Planning in a Shrinking Society: The Possibility of Mixed Land Use and Performance-Based Regulation

2017 Fiscal Year Final Research Report

• Project/Area Number: 15H04093
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Town planning/Architectural planning
• Research Institution: The University of Tokyo
• Principal Investigator: Ishikawa Toru 東京大学, 大学院情報学環, 教授 (70436583)
• Co-Investigator(Renkei-kenkyūsha): ASAMI Yasushi 東京大学, 大学院工学系研究科, 教授 (10192949)
• Project Period (FY): 2015-04-01 – 2018-03-31
• Keywords: 都市計画 / 都市・地域計画 / 都市居住論 / 縮小社会 / 用途混在 / 性能規定 / 居住環境 / 利便性

Outline of Final Research Achievements

In a shrinking society with decreased pressure of urban development, constructing compact cities where various land uses are located within walking distance is advocated. As a possible method for such planning, performance-based regulation has been discussed, which aims to evaluate whether to accept different land uses in residential areas depending on the degree to which they disturb the environment. This research examined residents' perceptions and evaluations of mixed land use with the methods of conjoint analysis and contingent valuation, based on online surveys administered to residents in four wards of Tokyo. Responses were examined in relation to residential characteristics, the degree of land-use mix, and personal values. Implications for urban planning in the age of city shrinkage are discussed, focusing on the psychological trade-off between convenience and residential environment and the degree of mixed land use that the residents consider appropriate.

Free Research Field

都市計画