黒崎の小学校ブロックの微気候分析と最適化に関する研究

学生名：何　心誠

研究テーマ：Microclimate Analysis and Optimization of Elementary School Blocks in Kurosaki

入学年月:2019.10

修了年月:2021.09

取得学位：修士（工学）

論文概要:Urbanization in Japan has led to increased building density and concentrated populations in cities, significantly impacting the urban climate. Issues such as urban heat islands and windless cities have become prevalent, affecting daily life and posing greater risks to vulnerable groups, including the elderly and young children. Urban morphology has been identified as a critical factor influencing the urban microclimate. However, research on how these impacts manifest around elementary schools—densely populated areas with vulnerable groups—remains limited.

This study examines the microclimate and thermal comfort of areas surrounding 12 elementary schools in the highly urbanized Kurosaki district of Kitakyushu. Using a combination of data collection, field measurements, numerical simulations, and correlation analysis, the study investigates the microclimate of elementary school blocks at the urban scale. Initial measurements assessed the urban heat island effect in Kurosaki. Based on land use and land cover data, the elementary school blocks were categorized into four types: commercial districts, high green areas, middle and low-rise residential areas, and public spaces. Air temperature variations across these categories were analyzed.

To further explore the microclimate dynamics, ENVI-met software was used to simulate the spatial distribution of the microclimate at three typical time points for the 12 school blocks. The relationship between urban morphology and the microclimate around schools was examined. Based on these analyses, three urban morphology optimization strategies were proposed to improve the microclimate and thermal comfort of elementary school blocks. These strategies were tested on a representative school block, and the results demonstrated their effectiveness in enhancing thermal comfort and mitigating adverse microclimate conditions.

This research provides valuable insights for urban planners and environmental designers aiming to improve microclimates around schools. By addressing thermal comfort through urban morphology optimization, this study contributes to the development of safer and more comfortable environments for vulnerable populations, particularly elementary school students.