Author: Ji, Bonan
Title: Passive observation of outdoor area: public area usage and thermal comfort
Advisors: Niu, Jianlei (BSE)
Degree: M.Eng.
Year: 2020
Subject: Human comfort
Temperature -- Physiological effect
Hong Kong Polytechnic University -- Dissertations
Department: Department of Building Services Engineering
Pages: vii, 88 pages : color illustrations
Language: English
Abstract: Many studies have examined the relationship between thermal comfort and recruiters in a given outdoor environment, and most of these studies aim to find out the comfortable thermal range. However, the outdoor environment is complex and the most comfortable thermal environment is not always available, so this study used a relatively passive observation approach to study what kind of outdoor areas users prefer to stay, trying not to affect the users' independent choice of outdoor area. This dissertation introduces two kinds of passive observation approaches, the dynamic and short-term passive observation and the static and long-term passive observation, to find out what factors may affect the use of outdoor areas. Dynamic observation refers to a short-term observation at multiple sites, while static observation refers to a long-term observation at specific sites. The results show that 27°C may be the neutral PET in Hong Kong. In general outdoor areas, PET is acceptable from 24°C to 30°C for users, while in special functional areas such as catering areas, PET from 30°C to 40°C is also acceptable. In addition, Hong Kong residents may prefer sunshine-shelter area. The static and long-term passive observation in a community playground in Beijing shows that children also have a higher tolerance to high PET. These results indicate that when users independent choose to be exposed to outdoor environment, their psychological adaptation is stronger. On the basis of the above research results, this dissertation proposes strategies to improve the utilization of outdoor areas, such as increasing greening and shelters in outdoor open areas.
Rights: All rights reserved
Access: restricted access

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