This study aims to develop a thermal environment simulation tool to support urban planning, utilizing PLATEAU, a 3D urban model maintained by the Ministry of Land, Infrastructure, Transport and Tourism. The tool is configured to be operated using two components. The first component is used to add information on trees, buildings, and land use to the PLATEAU data. The second component is used to create voxel for calculations, calculate heat balance, and output visualization files. This tool allows the evaluation of thermal environment in wide urban areas, take into account the effects of urban greening and urban redevelopment.
