Thermal environment mitigation effects in suburban area

¹ School of Life Studies, Sugiyama Jogakuen University, Nagoya, Japan
² Department of Architecture, Ariake National College of Technology, Omuta, Japan
³ Department of Architecture, Kyushu Sangyo University, Fukuoka, Japan
⁴ Department of Architecture and Structural Engineering, Kure National College of Technology, Kure, Japan
⁵ School of Humanities and Social Sciences, Osaka Prefecture University, Sakai, Japan
⁶ School of Human Science & Environment, University of Hyogo, Himeji, Japan

^* Corresponding author: kurazumi@sugiyama-u.ac.jp

Abstract

The purpose of this paper is to clarify the relationship between the physiological and psychological responses of the human body and the outdoor environment evaluation index ETFe (enhanced conductioncorrected modified effective temperature). The experiments were carried out in summer. For the measurements, observation points were selected with consideration for the condition of the ground surface such as bare ground where the surface is gravel or soil; paved ground such as concrete, asphalt or blocks; green areas covered in plants and water surfaces and with consideration for the condition of the sky factor due to buildings or trees. 19 observation points were chosen. Subjects were 38 healthy young. ETFe that was considered to report neither hot nor cold, thermally neutral sensation, was 30.6°C. ETFe that was considered to report neither comfortable nor uncomfortable comfort was 35.5°C. It was considered that the threshold for the human body with regards to thermal environment stimuli in an outdoor space is higher than the thermal environment stimuli in a summer indoor space.