Street Spatial Layout Strategy Of Multilayer And High-density District Of Hangzhou City Based On Outdoor Wind Environment Evaluation

The rapid development of urban multilayer and high-density area has led to the gradual emergence of urban microclimate and environmental problems in downtown areas.Pedestrian comfort and urban microclimate are closely linked,especially the quality of urban ventilation has a significant impact on residents’comfort,health and quality of life.Street,as the basic unit of urban multilayer and high-density area Research,is also the most dense space of human flowThe research of this paper mainly includes three levels:the first level,through a large number of previous research results,combing the development of wind environment research methods,and found the urban wind environment research field short plate,clear research direction;The second level,through the field measurement,reveals the personality and common characteristics in the outdoor wind environment of the street space layout in the urban multilayer and high-density area in Hangzhou,and clarifies the typical layout of the street space in the urban multilayer and high-density area;The third level,through a series of numerical simulations of the street space layout model,refines the quantitative parameters,and then optimize the street space wind environmentThis study will provide an effective evaluation tool for the development of street space layout and planning requirements in a large number of urban multilayer and high-density areas,and serve as a bridge between environmental engineering and architecture.At the same time,for urban multilayer and high-density area,if at the beginning of the design can deal with the possible wind environment problems,from the point of view of planning and design to take measures to optimize the program,will help to establish a good urban microclimate,more conducive to the sustainable development of the city.