Research On Spatial Pattern Language Of Climate Adaptability In Xi’an City Street Based On Behavior Selection

With the continuous expansion of the urban construction area driven by the rapid economic development,the urban living environment problem becomes increasingly serious,and the comfortable outdoor space in people’s life gradually disappears.Street is the most important outdoor space and important places of people in the city life,so the research on city streets microclimate deep exploring different street space can help influence on environment microclimate,through observation,measurement,data collection and analysis of the corresponding microclimate factors to provide strong support to improve street environment,is the inevitable choice of sustainable urban development in the future.Taking Xi ’an city streets as the research object,this paper divides Xi ’an city streets into different types according to the climate characteristics of Xi ’an city and the street space design factors that affect users’ behavior and activities.By means of field measurement and computer simulation,the characteristics of thermal environment in winter and summer of each typical street were analyzed and compared.The influence factors of the thermal environment on the user’s behavior are analyzed,and the specific spatial model language is proposed for the spatial climate adaptability design of urban streets.Specific work has been carried out as follows:(1)A study on the street type of Xi ’an city based on the behavior selection,combined with the actual investigation and analysis of Xi ’an city streets,and based on the analysis of the behavior type of city streets and the demand for climate adaptability,proposed the street space design factors that affect the user’s behavior selection.And according to each factor to the Xi ’an city street type division.(2)The street behavior activities in xi ’an city were photographed,interviewed and observed at fixed points,and the people,time period and comfort of the site were counted and classified.The spatial characteristics of the street were analyzed according to the distribution law of the behavior activities and the comfort level of the site climate,so as to put forward the spatial pattern of street behavior activities.(3)Investigation and analysis of typical street thermal environment in winter and summer.In order to analyze the microclimate characteristics of Xi ’an city streets and verify the reliability and applicability of the microclimate numerical model of city streets.Select representative streets in the main urban area of Xi ’an to carry out microclimate measurement and behavior observation in winter and summer,analyze the thermal environment characteristics of each typical street in winter and summer with measured air temperature data and street test data on the same day.(4)Analyze the climate adaptation conditions and regulation approaches of behavior space.According to the different behavior types of typical streets in different time periods and corresponding space elements on the test day,the typical streets were divided into different time periods,combined with the measured data and computer simulation data,and the regulation approach of the spatial form of typical streets in winter and summer on the user’s behavior and activities was proposed.(5)Climate adaptive spatial model language of typical streets.