Study On Landscape Reconstruction Design Of Low-income Block In The Old City Of Northern Henan Under The Background Of Urban Relocation

In recent years,along with the introduction of a number of policies for the establishment of safe city,highlighting the emphasis on the prevention of urban security risk and the modernization of security governance.The weakest point of building a safe city lies in the old city,where security infrastructure is backward and lacking,public space security risks are frequent,and new social contradictions keep emerging.In view of these safety problems inside the old city,this study proposes to guide the old city blocks to carry out safety transformation through the theory of safety landscape.This study takes the old city of northern Henan under the background of urban relocation as the background,aiming at the internal security problems of the old city,in order to improve the safety of the block as the purpose,to transform the low-income block,which can provide reference for similar research in the future.First of all,the relevant concepts and theories on the safety of low-income neighbourhoods at home and abroad are sorted out and summarized to lay the foundation for the following research.Secondly,it makes an in-depth investigation and research on the South Street of Anyang City,and finds out the existing security landscape problems in four aspects: surveillance,boundary,activity and identification.Then,according to the principle of environmental visibility,the design strategy of opening up the roadway,increasing night lighting and eliminating the "shade Angle" of plants was proposed to solve the problem of blind sight area and insufficient natural monitoring in the street.In order to solve the problem of chaotic boundary division and weak control,the protective design strategies of flexible protection of commercial boundary and multi-element division of residential boundary are proposed according to the principle of creating domain boundary division.Aiming at the problems of less activity space and insufficient behavioral support for residents,the design strategy of activity space for neighborhood watch is proposed according to the functional principle of restoring street vitality.In order to solve the problems of outdated street sign system and poor recognition,according to the principles of building the integrity,intelligibility and clarity of signs,a design strategy of building grid sign layout,reshaping the readability of sign content and the uniqueness of color design was proposed.Finally,this paper applies the above design strategies through the safety street design in the South Street of the typical block in Anyang City,and explores the design methods and approaches of the safety street in the old city of northern Henan.A good monitoring line of sight relationship can be formed inside the block,a clearer street boundary ownership relationship,more abundant space activities and a clear and definite sign system are conducive to the transformation and reshaping of the security environment within the block.In this study,questionnaire survey,semi-structured interview,field study,literature review,field participation and observation were used to conduct preliminary research.Through comparative analysis,interdisciplinary comprehensive summary method to analyze and summarize the block safety issues;Through computer-aided design,the scheme is designed and deepened,and the factors and problems affecting the environmental safety and environment of low-income blocks in the old city of northern Henan are discussed.The transformation is helpful to improve the environment of low-income blocks in the old city of northern Henan,improve the quality of human settlement and livability,and create a safer living environment and dynamic public space in the block.