一处实际室外场地为例，采用ENVI-met 4.0 CFD模拟耦
|关键词: 风景园林 行道树 慢行道 遮阴率 热环境 热舒适
|Study on Thermal Comfort Characteristics of Slow Traffic Road in Humid and Hot Area Based on Shading Ratio
|JIANG Yi,XU Feng,XIONG Ying,LIU Zhixin,ZHAO Lihua
|The slow traffic road design has corresponding
requirements on the landscape, spatial scale, and coordination with
the environment. Each landscape component has a certain influence
on the microclimate environment, such as solar radiation shelter,
temperature and humidity distribution, and wind field. Among them,
the shading of street trees is the main factor affecting the thermal
environment of slow track. According to the shading rate index,
typical slow traffic lanes are selected to observe the microclimate
elements continuously, and the questionnaire surveys are issued to
the pedestrian and riders to obtain the thermal environment level
of the slow track and the thermal characteristics of the crowd. The
thermal comfort of slow track was evaluated quantitatively by
index and the regression analysis method of SPSS software.
The factors affecting thermal discomfort, thermal preference,
thermal comfort and travel demand of the crowd were obtained.
The evaluation strategy of the microclimate environment of slow
track was constructed with "shading ratio-thermal environment-heat
expectation". Finally, an actual outdoor site in Guangzhou city was
taken as an example to evaluate the thermal comfort of slow track.
The method of ENVI-met 4.0 software simulation coupled RayMan
software was used to discuss the optimization design method of
urban slow track based on quantitative demonstration of thermal
environment and thermal comfort.
|Key words: landscape architecture roadside tree slow traffic road shading ratio thermal environment thermal comfort