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为了评价不同热舒适指标在中国湿热地区城市室外空间的适用性,以广州为例,通过问卷调查和现场测试,获得8个典型城市室外空间的人体热感觉投票和微气候参数。采用统计指标和定性指标,对比评价生理等效温度(PET)、标准有效温度(SET*)、通用热气候指标(UTCI)和经验指标(TSV_(model))对室外热感觉的预测性能。研究结果表明:TSV_(model)的适用性最好,表现为其计算参数,也即空气温度、风速和太阳辐射对湿热地区居民在城市室外空间的热感觉投票决定系数最高,为0.942,TSV_(model)预测值与居民室外热感觉投票的Spearman相关系数最大,为0.833,TSV_(model)对居民热感觉投票百分比的预测正确率最高,为65.1%。推荐经验指标TSV_(model)作为我国湿热地区的室外热舒适评价指标,用以评价不同城市室外空间的规划设计对人体舒适性的影响。
In order to evaluate the applicability of different thermal comfort indexes in urban outdoor space in humid and hot areas of China, taking Guangzhou as an example, the thermal sensation voting and the micro-climate parameters of human body in 8 outdoor spaces of typical cities were obtained through questionnaire and field test. The statistical properties and the qualitative indexes were used to evaluate the predictive performance of outdoor thermal sensation on the physiological equivalent temperature (PET), the standard effective temperature (SET *), the universal thermal index (UTCI) and the empirical index (TSV_ (model) The results show that TSV model has the best applicability, which is expressed as its calculation parameters. That is, air temperature, wind speed and solar radiation have the highest thermal voting sensitivities to residents in the hot and humid areas, 0.942, TSV_ ( model has the highest Spearman correlation coefficient of 0.833. The TSV model has the highest prediction accuracy of 65.1% for the residents’ perceived heat voting percentage. The recommended empirical index TSV_ (model) is used as an index of outdoor thermal comfort in humid and hot areas of our country to evaluate the impact of the planning and design of outdoor space in different cities on human comfort.