| Author: | Peng, Yilin |
| Title: | Impact assessment of historic street districts renewal strategies on outdoor thermal comfort : a case study in Guangzhou city |
| Advisors: | Yung, H. K. Esther (BRE) |
| Degree: | M.Sc. |
| Year: | 2024 |
| Subject: | Urban renewal -- China -- Guangzhou (Guangdong) City planning -- Environmental aspects -- China -- Guangzhou (Guangdong) Urbanization -- Environmental aspects Hong Kong Polytechnic University -- Dissertations |
| Department: | Department of Building Environment and Energy Engineering |
| Pages: | 92 pages : color illustrations |
| Language: | English |
| Abstract: | Amidst the challenges posed by climate change and urbanization, extreme heat exposure in mixed-use historic districts presents significant health risks. Prior research has emphasized the social and economic effects, often overlooking outdoor thermal comfort. This paper focuses on the Enning Road Historic District in Guangzhou, a prime example of urban renewal, to assess the impact of renewal strategies on thermal comfort. By employing field surveys, geographical analysis, and street view image recognition, the study compares the district's urban geometry, greenery, and water systems before and after renewal through ENVI-met simulations, using meteorological data from Guangzhou Meteorological Station during a heatwave on May 30, 2023. The analysis reveals that renewal strategies have notably enhanced thermal comfort. Building shading emerged as the most influential factor, with the street aspect ratio significantly affecting the mean radiant temperature. However, localized ventilation showed limited cooling effects in unshaded areas, whereas water bodies substantially reduced temperatures nearby, particularly around NE-SW river sections. The study suggests improvements in planting patterns, street layout, and water system design to optimize thermal comfort. These findings highlight the importance of integrating thermal comfort measures in the renewal of historic districts, offering valuable insights for future urban planning and design. |
| Rights: | All rights reserved |
| Access: | restricted access |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| 7747.pdf | For All Users (off-campus access for PolyU Staff & Students only) | 3.76 MB | Adobe PDF | View/Open |
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