New Neighborhood Greenery Planning and Its Applicability Assessment with Re-evaluation of Traditional Knowledge of Vernacular Landscape in Southeast Asian City

2023 Fiscal Year Final Research Report

• Project/Area Number: 19K04779
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Review Section: Basic Section 23030:Architectural planning and city planning-related
• Research Institution: Tokyo City University
• Principal Investigator: SAITO KEI 東京都市大学, 都市生活学部, 准教授 (40805941)
• Co-Investigator(Kenkyū-buntansha): 篠崎 道彦 芝浦工業大学, 建築学部, 教授 (60241014)
• Project Period (FY): 2019-04-01 – 2024-03-31
• Keywords: 地域緑化計画 / 歴史景観都市 / 土着造園技術 / 伝統的生態学的知識 / 都市熱環境

Outline of Final Research Achievements

The objective of this study was to develop a method for mitigating the thermal environment through a quantitative reevaluation of the ambient cooling effect and to evaluate its applicability to neighborhood greening plans, focusing on the landscaping design that have been empirically handed down in Southeast Asia to obtain cooler weather. The main results of the study are as follows: (1) A database of traditional landscaping techniques was developed through a literature review and collection of geospatial data. (2) Through field surveys, characteristics such as typical tree species, size, and layout of plantings in the heritage area were clarified. (3) Through numerical simulation of the current microclimate environment in the new and old towns, the thermal comfort characteristics of the buildings, road widths, and street tree conditions were estimated, and the greening measures and their effects for narrow back lanes that fit in the heritage town were summarized.

Free Research Field

都市環境デザイン

Academic Significance and Societal Importance of the Research Achievements

夏季の体感気温が上昇している我が国においては，機械的なアクティブ型の都市冷却技術の導入が進められている。本研究は，蒸暑気候の東南アジア都市に伝統的に伝わるパッシブ型の造園手法に着目し，それらの冷却効果の定量的な再評価を行った。またそれらの歴史都市における景観との調和も考慮しながら，都市のもつ歴史・文化的なコンテキストに適用可能な地域緑化手法をまとめた。これら自然の持つ都市冷却効果の再評価を扱った研究は少なく，学術的な意義がある。これらの知見は，我が国における夏に涼しいまちづくりへの活用が期待でき，環境配慮型の低炭素社会の構築に寄与することが期待できるなど，社会的な意義も大きい。