Study On The Evaluation And Protection Of The Exterior Space Of Traditional Streets And Lanes Under The Background Of Urban Renewal

Over the past 40 years of reform and opening up,the city ' s development model has gradually changed from incremental planning to stock planning,and the city's development momentum and development goals have also changed over time.Cities that entered the period of rapid development in the early years also faced new urban development problems:under the strict control of the total amount of urban construction land,how to use the existing urban construction land to continue the prosperity of the city during the expansion period? How to ensure the coordination of the style of the core area of the historical area and the external environment space? How to ensure the sustainable development of the external environment space and the new urban economy?This article first analyzes the problems faced by traditional streets and lanes in China in recent years,clarifies the urgency of the protection of traditional streets and lanes in China,and then reviews the relevant theoretical research at home and abroad,and defines related concepts such as traditional streets and lanes and external environmental space.On the basis of discussing the relationship between the external environment and the surrounding environment,the author analyzes the comprehensive value of the external environment space,divides the external environment space value into two parts: ontology value and instrumental value,and further refines the ontology value to obtain buildings(structures).Factors,external environmental elements and street space elements are three-dimensional value evaluation elements.The instrumental value is obtained from the instrumental element,thereby clarifying the four basic evaluation dimensions of the comprehensive value evaluation system of the external environment space."Structure)structure elements" are refined into historical value elements,use value elements,scientific value elements,artistic value elements and emotional value elements,and external environmental elements are refined into geographical environment elements,traffic environment elements,landscape environment elements and facility environment elements The spatial elements of streets and lanes are refined into the elements of street pattern and growth of streets,and the instrumental factors are refined into elements of commercial atmosphere,development intensity and cultural elements of streets and lanes,so as to finally construct a comprehensive value index system of external environmental space.In the process of delineating the external environment,the "inflection point method" was used to draw a coordinated awareness change chart in each trend direction to obtain the exact range of the environmental space outside Heping Street.Taking the environmental space outside Heping Street in Enshi City as the research object,it carried out a comprehensive evaluation of all aspects,proposed relevant protection measures for external environmental protection according to the evaluation results,and clarified the specific method for delineating the scope of the external environment space,as well as the subsequent external environment Value enhancement strategies provide accurate directions.