A Study On The Correlation Between Spatial Vitality Of Urban Cultural And Commercial Street Squares And Micro-Climate Characteristics

Cultural and commercial blocks,which are developed on the basis of historical buildings that can carry spiritual culture,can play a great positive role in the development of local economy and the dissemination of culture.However,most of the planning and design of cultural and commercial blocks only start from the single level of the material environment and the commercial perspective,and fail to plan and design the external space based on the full consideration of the correlation between the material environment and human activities,which results in the unsatisfactory performance of the vitality of cultural and commercial blocks.This study selected huangshan tunxi district "sincerely alley" in the square space as the research object,using the observation recording and software simulation method on square space throughout the study period during summer and winter seasons and stay through the act of hourly for field observation,analysis of the plaza space dynamic condition,and using climate simulation software build environment diversity maps,in order to get the square space vitality and micro climate characteristics of relevance.First of all,through on-the-spot investigation to sincerely lane in outer space(square,street)all the general situation of the space,according to the practical investigation and research characteristics of people's activities established in this paper,the research object,the observations,winter summer respectively at the same time,the climate simulation software is used for the study of the square and build environment to simulate the temperature,wind speed and sunshine diversity map,on the basis of analysis for geometric structure characteristics and the physical environment factors on the effects of single factor.Wind speed in winter and summer is low in the square,and the main climate type is "no wind + shadow,no wind + shadow" area.At the same time,the questionnaire survey method was used to verify the rationality of taking temperature,wind speed and sunshine in climate parameters as climate research objects from the perspective of subjective perception in the environmental diversity map method used in this paper.Secondly,through behavioral observation and analysis of the behavioral characteristics in the square,it is found that the characteristics of the stay behavior in each study area have seasonal characteristics.In summer,the areas with higher stay density in each square are mostly located at the edge of the building interface around the square,while in winter,the open areas in each square have higher stay density.Moreover,the functional properties of the square enclosure interface,the crossing path and the facility landscape all have different degrees of influence on the occurrence of the stopping behavior.Therefore,the stopping characteristics of the external square are comprehensively affected by many factors.Finally,through superposition analysis of each climate type area in the environmental diversity map and the stationing points in the square space,the characteristics of the stationers' choice of climate type in the square space are obtained,and the correlation between the two is discussed.In summer,the wind-shadow area and sun-shadow area inside the square as well as the building edge under trees and water area with lower temperature have a higher tendency to be selected,so the total number of residents and the number of residents per unit area in the "windless + shaded" area are the largest.In winter,the no-shadow area and the open space with higher temperature in the square have a higher tendency to be selected,so the total number of people staying in the "no-wind +no-shadow" area and the number of people staying per unit area are the largest.On the premise of relatively sufficient investigation and measurement,this paper takes the improvement of square space quality as the research purpose,in order to provide research ideas for the evaluation of climate comfort of square space in cultural and commercial blocks and the improvement of space quality.