Impacts of street tree canopy coverage on pedestrians' dynamic thermal perception and walking willingness

IF 10.5 1区工程技术 Q1 CONSTRUCTION & BUILDING TECHNOLOGY

Sustainable Cities and Society Pub Date : 2025-02-04 DOI:10.1016/j.scs.2025.106196

Yijuan Sang, Yanjun Hu, Xiao Qin, Hai Yan, Renwu Wu, Fengtao Qian, Xinge Nan, Feng Shao, Zhiyi Bao

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引用次数: 0

Abstract

During extreme heat conditions, street trees play a crucial role in improving the thermal environments on urban non-motorized roads. This study examined the effects of varying street tree canopy cover on pedestrians' thermal perception, walking willingness, and heat mitigation behaviors in Lin'an District, Hangzhou, by measuring meteorological parameters of four roads with different tree canopy coverage ratios and analyzing questionnaires of 51 subjects. Results show that there were significant differences in air temperature between different experimental roads (p < 0.01). The road with high tree canopy cover experienced a reduction in air temperature by approximately 2.8 °C compared to the treeless road, effectively improving the thermal environments of sidewalks. Analysis of subjective thermal perception votes and skin temperatures of the forehead also indicated greater thermal comfort on the high-coverage road. Its significant shading effect reduced pedestrians' thermal exposure and decreased the frequency of heat mitigation behaviors. Additionally, varying levels of tree canopy cover had a substantial impact on pedestrians' walking willingness. The high-coverage road attracted more pedestrians to walk outdoors, with an average walking distance 0.75 km longer than on the treeless road. Roads with medium and low tree canopy cover also provided some improvement, though less effectively than the high-coverage road.

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来源期刊

Sustainable Cities and Society Social Sciences-Geography, Planning and Development

CiteScore

22.00

自引率

13.70%

发文量

810

审稿时长

27 days

期刊介绍： Sustainable Cities and Society (SCS) is an international journal that focuses on fundamental and applied research to promote environmentally sustainable and socially resilient cities. The journal welcomes cross-cutting, multi-disciplinary research in various areas, including: 1. Smart cities and resilient environments; 2. Alternative/clean energy sources, energy distribution, distributed energy generation, and energy demand reduction/management; 3. Monitoring and improving air quality in built environment and cities (e.g., healthy built environment and air quality management); 4. Energy efficient, low/zero carbon, and green buildings/communities; 5. Climate change mitigation and adaptation in urban environments; 6. Green infrastructure and BMPs; 7. Environmental Footprint accounting and management; 8. Urban agriculture and forestry; 9. ICT, smart grid and intelligent infrastructure; 10. Urban design/planning, regulations, legislation, certification, economics, and policy; 11. Social aspects, impacts and resiliency of cities; 12. Behavior monitoring, analysis and change within urban communities; 13. Health monitoring and improvement; 14. Nexus issues related to sustainable cities and societies; 15. Smart city governance; 16. Decision Support Systems for trade-off and uncertainty analysis for improved management of cities and society; 17. Big data, machine learning, and artificial intelligence applications and case studies; 18. Critical infrastructure protection, including security, privacy, forensics, and reliability issues of cyber-physical systems. 19. Water footprint reduction and urban water distribution, harvesting, treatment, reuse and management; 20. Waste reduction and recycling; 21. Wastewater collection, treatment and recycling; 22. Smart, clean and healthy transportation systems and infrastructure;