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Simulation and Analysis of Influencing Factors of Pavement Thermal Environments in Guangzhou

Author

Listed:
  • Li Li

    (College of Architecture and Urban Planning, Guangzhou University, Guangzhou 510006, China)

  • Ziqi Zou

    (College of Architecture and Urban Planning, Guangzhou University, Guangzhou 510006, China)

  • Tingting Zhou

    (College of Architecture and Urban Planning, Guangzhou University, Guangzhou 510006, China)

  • Xiaoqing Zhou

    (Building Energy Conservation Research Institute, Guangzhou University, Guangzhou 510006, China)

  • Qingliang Li

    (Guangdong Architectural Design Institute Corporation, Guangzhou 510010, China)

Abstract

Pavements are closely related to the livelihoods of urban residents as an important part of the urban road system. Based on the early field measurements of our team, we found that plant spacing, pavement orientation, and pavement material influence the pavement thermal environment. Our objective was to quantitatively evaluate the influence of various factors on pavements in Guangzhou along West Zhonghuan Road, Guangzhou University. Based on our team’s previous research, environment-met (ENVI-MET) numerical simulation software was used to simulate pavements under different road orientations, underlying surface materials, and plant distances. Quantitative analysis of the effects of different factor combinations on the temperature, humidity, wind speed, physiological equivalent temperature (PET), and radiant temperature (Tmrt) was performed. The results show that among the various factors affecting the thermal environment of pavement, street tree spacing was found to have the greatest effect on the thermal environment of pavement. The effect of direction is negligible; however, it has a significant effect on the wind speed. There was no significant difference in the air temperature and relative humidity between concrete and asphalt. The average air temperature of red floor tile was slightly lower than that of asphalt and concrete. Reducing the spacing of street trees can effectively reduce the penetration of direct solar radiation, physiological equivalent temperature (PET), and temperature (Tmrt) and improve pedestrian walking comfort. The results can serve as a reference for pavement design in Guangzhou and improve the wellbeing of citizens and promote environmental sustainability.

Suggested Citation

  • Li Li & Ziqi Zou & Tingting Zhou & Xiaoqing Zhou & Qingliang Li, 2022. "Simulation and Analysis of Influencing Factors of Pavement Thermal Environments in Guangzhou," Sustainability, MDPI, vol. 14(12), pages 1-17, June.
    • Handle: RePEc:gam:jsusta:v:14:y:2022:i:12:p:7251-:d:838049
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    References listed on IDEAS

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    1. John A. Paravantis & Panagiotis D. Tasios & Vasileios Dourmas & Georgios Andreakos & Konstantinos Velaoras & Nikoletta Kontoulis & Panagiota Mihalakakou, 2021. "A Regression Analysis of the Carbon Footprint of Megacities," Sustainability, MDPI, vol. 13(3), pages 1-24, January.
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    Cited by:

    1. Le Zhang & Xiaoxiao Xu & Yanlong Guo, 2022. "Comprehensive Evaluation of the Implementation Effect of Commercial Street Quality Improvement Based on AHP-Entropy Weight Method—Taking Hefei Shuanggang Old Street as an Example," Land, MDPI, vol. 11(11), pages 1-19, November.

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