编号 lyqk011771

中文标题 典型浅街峡谷中街道可视因子对行人夏季热舒适的影响

作者 高庆龙  沈师琪  欧阳金龙 

作者单位 四川大学建筑与环境学院 成都 610065

期刊名称 中国城市林业 

年份 2024 

卷号 22

期号 6

栏目名称 专题: 城市森林与城市热缓解 

中文摘要 城市中广泛存在的浅街峡谷热环境比深街峡谷的较差,研究其空间可视要素对街谷热环境的影响可为城市规划设计提供参考。以成都市双流区东西向、南北向的两条浅街峡谷为例,在夏季典型日通过实测结合主观问卷调查的方式探索街道可视因子对行人夏季热舒适的影响,揭示街道可视因子与行人热舒适度之间的相关性,并建立成都市夏季浅街峡谷热舒适评价模型。结果表明:1)街道可视因子显著影响行人热舒适:天空可视因子每提高10%,热感觉评分升高18%,热舒适度降低;树木可视因子每提高10%,热感觉评分下降19%,热舒适度提升;建筑可视因子则无显著相关性。2)午后14∶00—16∶00,天空可视因子与街谷行人热舒适度之间的相关性显著强于其他时间段,归因于人们的心理感知与适应机制。3)由于太阳辐射分布的差异,南北向街谷热环境优于东西向街谷,行人热舒适水平更高。4)热舒适评价模型表明,夏季提高风速与减少太阳辐射是改善街谷行人热舒适更为适宜的途径。因此,种植冠大荫浓的行道树、增加街谷两侧垂直绿化与创造街谷内积极体验性空间是改善街谷行人热舒适更为有效的方式。

关键词 浅街峡谷  街道可视因子  行人热舒适  热舒适评价模型  成都市 

基金项目 国家重点研发计划项目(2022YFC3802704)

英文标题 Influences of Street View Factors on Pedestrian Summer Thermal Comfort in Typical Shallow Street Canyon

作者英文名 Gao Qinglong, Shen Shiqi, Ouyang Jinlong

单位英文名 College of Architecture and Environment, Sichuan University, Chengdu 610065, China

英文摘要 Shallow street canyons, which are widely found in cities, have worse thermal environment than deep street canyons, and the study of the influences of their spatial-visual elements on the thermal environments of street canyons can provide a reference for urban planning and design. Taking two shallow street canyons in east-west and north-south directions in Shuangliu District of Chengdu City as an example, we explore the influence of street view factors on pedestrian thermal comfort in summer by means of the combination of actual measurements and subjective questionnaire surveys on typical summer days, reveal the correlation between street view factors and pedestrian thermal comfort, and established a thermal comfort evaluation model for the shallow street canyons in summer in Chengdu City. The results show that: 1) Street view factors significantly affect pedestrian thermal comfort. For every 10% increase in sky view factors, thermal sensation scores increase by 18% and thermal comfort decreases; for every 10% increase in tree view factors, thermal sensation scores decrease by 19% and thermal comfort improves. There is no significant correlation between building view factors; 2) The correlation between sky view factors and pedestrian thermal comfort is significantly stronger at 14∶00-16∶00 in the afternoon than in the other time periods, which is attributed to people's psychological perception and adaptation mechanism; 3) Due to the difference in the distribution of solar radiation, the thermal environment of the street canyon in north-south direction is better than that in east-west direction, which results in a higher level of pedestrian thermal comfort; and 4) Thermal comfort evaluation modeling indicates that increasing wind speed and the reducing solar radiation are the appropriate ways to improve the thermal comfort of pedestrians in the street canyon in summer. In this sense, it is concluded that the more effective ways to improve the pedestrian thermal comfort in the street canyon are planting street trees with large canopy, increasing vertical greening on both sides and creating positive experiential spaces.

英文关键词 shallow street canyon;street view factor;pedestrian thermal comfort;thermal comfort evaluation model;Chengdu City

起始页码 1

截止页码 9

投稿时间 2024/9/27

作者简介 高庆龙(1978-),男,博士,教授,研究方向为建筑环境与节能。E-mail:gao3066@163.com

通讯作者介绍 欧阳金龙(1976-),男,博士,教授,研究方向为城市与建筑物理环境。E-mail:ow761202@scu.edu.cn

E-mail ow761202@scu.edu.cn

DOI 10.12169/zgcsly.2024.09.27.0001

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