Research On The EvaluatioP Of Living Street Space Security Based On FAHP Method

Street space is the largest number of small-scale public space in a city,and it is also an essential public space for people's daily activities and communication,but with the progress of society,the rapid development of science and technology,the rapid growth of the number of motor vehicles.This paper uses the combination of theory and practice,and with the help of urban and rural planning,sociology,mathematics and other fields of theory and operational knowledge,to the Shushan District of Hefei Sanlian street space security Comprehensive evaluation,summed up the targeted measures on street safety regulation,and its application in the area need to carry out safety transformation in the street space.First of all,on the basis of theory to understand the components of street space,through the city image,place behavior and other theories and concepts such as image,space perception,environmental factors,street space,CPTED theory and other basic elements of living street space,site characteristics and classification standards,and on this basis,field research,from the urban living street safety problems and pedestrian safety needs of the street around the street.The factors affecting the security of urban living street space are explored and evaluated in three aspects:the bottom interface,the street side interface and the open space enclosed by the bottom interface and the side interface.The safety of living street space is evaluated from the perspective of crime prevention theory of environmental design.An empirical study on the living streets in Shushan District of Hefei City was carried out,and qualitative and quantitative research methods——fuzzy-level comprehensive evaluation method were used to evaluate the safety of the street space by combining public evaluation with expert opinions,and two sets of evaluation index system were used to verify each other,according to the data results.This paper analyzes the safety grade of the object of study,finally puts forward the intensity of the improvement of the living street space safety and synthetically analyzes the guidance of the detailed regulation of the living street space safety,so as to provide the planning guidance for the street space regulation.The text is divided into seven chapters:Chapter 1:introduction part,to interpret the relevant concepts of streets,to understand the development of urban streets,mainly discusses the research background,relevant theories,domestic and foreign research progress,clear the research object of this topic.Chapter 2:This paper discusses the research background,purpose and significance of the research,expounds the research content,main research methods and research technical route.Chapter 3:Based on the basic research on the security of urban living street space,through the field investigation,we can understand the street space characteristics in Sanli'an street in Shushan District of Hefei City,and discuss the composition of street space Elements and six core strategies of crime prevention theory through environmental design to interpret the research object and extract the life street space safety evaluation index,and finally construct the life street space safety evaluation index system.Chapter 4:The construction of the evaluation model and the interpretation of the evaluation process,based on the street view picture,through the questionnaire survey to evaluate the safety of Sanli'an street in Shushan District of Hefei City,and through the method model to process the obtained data to obtain the evaluation results.The results of spatial security evaluation of Sanli'an street in Shushan District of Hefei were analyzed and interpreted,and six representative streets were obtained regulation intensity classification,and safety evaluation of living street space.Chapter 5:The evaluation results of Chapter 4 are verified and analyzed by CPTED theory.Chapter 6:On the basis of the analysis and research in the previous chapters,the security design strategy of living street space is put forward.Chapter 7:Summarize the full text and carry on the research prospect.