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Experimental investigation of the thermal usability of outdoor environments in rideability, walkability, entertainmentability, exercisability and workability for urban heat mitigation, adaptation and governance

Author

Listed:
  • Boze Huang

    (Chongqing University
    Chongqing University)

  • Xin Dong

    (Chongqing University
    Chongqing University)

  • Yu Tian

    (Chongqing University
    Chongqing University)

  • Mingqiang Yin

    (Chongqing University
    Chongqing University)

  • Yufeifei Qiu

    (Chongqing University
    Chongqing University)

  • Bao-Jie He

    (Chongqing University
    Chongqing University
    CMA Key Open Laboratory of Transforming Climate Resources to Economy)

Abstract

This study develops a quantitative method to assess the thermal usability (e.g., rideability, walkability, entertainmentability, exercisability and workability) of outdoor spaces. The benchmark for thermal usability was assessed by four widely used indicators [wet bulb globe temperature (WBGT), predicted mean vote (PMV), physiologically equivalent temperature (PET) and universal thermal climate index (UTCI)]. Among these five dimensions of thermal usability, exercisability was the most significantly thermally affected, as most of the exercise activities are moderately loaded and heavily loaded, and the exercisability of moderately loaded and heavily loaded would be lower than 33% and 24%, respectively, at WBGT above 30 °C. An empirical study based on field experiments in Changzhou, China, was performed. The results indicated that the quantitative method was capable of assessing the thermal usability of various urban spaces (e.g., basketball court, badminton field, walkway space and natural lawn), and could guide people in spatial modifications, outdoor activities and site management. The empirical studies also showed that airflow and radiation were the two critical meteorological factors, associated with urban infrastructure affecting the thermal usability of outdoor spaces. Activity metabolism showed a positive correlation with participant’s heat stress and a negative correlation with the thermal usability. Suggestions were used to guide participants to avoid optional activities and to provide them protective recommendations for necessary activities during periods of low thermal usability. Overall, this paper promotes methodological understandings of thermal usability, and provides policy makers, urban planners and designers, and urban managers with implications on effective heat solutions.

Suggested Citation

  • Boze Huang & Xin Dong & Yu Tian & Mingqiang Yin & Yufeifei Qiu & Bao-Jie He, 2024. "Experimental investigation of the thermal usability of outdoor environments in rideability, walkability, entertainmentability, exercisability and workability for urban heat mitigation, adaptation and ," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 120(2), pages 2005-2034, January.
  • Handle: RePEc:spr:nathaz:v:120:y:2024:i:2:d:10.1007_s11069-023-06266-6
    DOI: 10.1007/s11069-023-06266-6
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    References listed on IDEAS

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    1. Jiao Xue & Xiao Hu & Shu Nuke Sani & Yuanyuan Wu & Xinyu Li & Liang Chai & Dayi Lai, 2020. "Outdoor Thermal Comfort at a University Campus: Studies from Personal and Long-Term Thermal History Perspectives," Sustainability, MDPI, vol. 12(21), pages 1-17, November.
    2. Ido Nevat & Gloria Pignatta & Lea A. Ruefenacht & Juan Angel Acero, 2021. "A decision support tool for climate-informed and socioeconomic urban design," Environment, Development and Sustainability: A Multidisciplinary Approach to the Theory and Practice of Sustainable Development, Springer, vol. 23(5), pages 7627-7651, May.
    3. He, Bao-Jie & Wang, Junsong & Zhu, Jin & Qi, Jinda, 2022. "Beating the urban heat: Situation, background, impacts and the way forward in China," Renewable and Sustainable Energy Reviews, Elsevier, vol. 161(C).
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