Investigation On The Use Of Public Space In Key Areas And Research On Renewal Desig

The connotation of ' People ' s City ' under the background of stock renewal is to provide public space for people to meet the demands of high-quality cultural life of different users through renewal.Updating should not be just for old industrial areas,historical blocks,old communities and other ' old areas ',' new areas ' under the background of rapid urbanization also need to be updated.This kind of space often occupies an important location of the city,is an important public activity center of the city,a dynamic catalyst point,and also a carrier of urban characteristics and citizens ' sense of belonging.In the past,more attention has been paid to such space practice or research in the grand blueprint concept,the oppression of super high-rise buildings,and the mismatch between open public space and microscopic individual spatial behavior and spatial feelings and demands,resulting in the low vitality of public space in the block,only people,and no social activities.This is also a strong spatial feeling in the investigation of the renewal design competition of Shanghai Xiaolujiazui block.In the competition,we first put forward the design concept of “ micro-city ”.By increasing the lowrise space,we can participate in public service facilities and draw in the distance between people and public space,strangers and people in super high-rise buildings.On the basis of the research on the spatial renewal of this type of key sections,this thesis selects the Hanyu Jingu District in Jinan,which has a relatively mature built environment and similar spatial types,as an example to carry out more in-depth research on the vitality characteristics,influencing factors,renewal strategies and design methods of public space from the survey of public space use.First of all,this thesis retrieves and analyzes the current domestic and foreign literature and cases about key areas and public space,summarizes the research trends,methods and different connotations of public space vitality.On this basis,the connotation of public space vitality in key areas is interpreted,which is divided into external representation factors and internal mechanism factors.External representation factors were measured from the crowd,time,space dimensions;in addition to the traditional material environmental impact analysis,the internal mechanism factors are added to the user individual comprehensive perception factor analysis under the background of the interconnection of all things and the individual as the main body.Secondly,based on the interpretation of the public space gene of Hanyu Jingu District,this thesis expands the classic PSPL survey method of Yang Geer.With the help of ARCGIS analysis,correlation analysis,spatial syntax,semantic analysis,descriptive analysis,network data analysis and other technical means,the external vitality representation of the three dimensions of the public space of the block and its material environmental impact factors are integrated to analyze the following problems in the public space of the block.First,the problem of the crowd dimension is that most of the public space outside the landmark square is single,and the attraction to the peripheral population is weak,which leads to a single type of activity.The main types of activities are non-stay,necessity and spontaneous activities,and the spatial vitality of population dimension is missing.Second,the problem of spatial dimension is the weak link between the public space of blocks and the public space system of peripheral cities.The vitality of public space is closely related to its interface enclosure and adjacent functions,and the open service facilities of public space interface are slightly insufficient.Third,the problem of time dimension is that the vitality of public space is different,and the user ' s general activity time is short.The vitality of public space during rest period is generally low,and is closely related to the daily physical environment.Then,in addition to the analysis of environmental factors affecting the vitality of public space in Hanyu Jingu District,this thesis also analyzes the comprehensive evaluation and activity demands of users on the public space of the block from the perspective of individual comprehensive perception factors.At the same time,it is also a supplement to the problems of incomplete coverage of the investigation scope,subjective experience limitation,one-sidedness and limitations of the results of the external characterization of block vitality and internal material environmental factors.Combined with the comprehensive survey of field questionnaires,the focus of network data,the preference of crowd portrait behavior,and the semantic difference of street space,this thesis analyzes the influencing factors of the micro comprehensive perception of public space in blocks,and draws the following conclusions.First,users generally believe that the visual pressure of public space in blocks is large.Second,the differences of physical environment characteristics and identification of public space do not match the preferences and concerns of users.Third,the acceptance of large-scale,long-distance underground public space is not high;fourth,the types and quality of landscape facilities in public space need to be improved.Finally,combined with the existing problems of public space in Hanyu Jingu block and the trend of high-quality and diversified public space users,the renewal strategies or design methods are put forward from three aspects : the renewal of the main body of the crowd dimension vitality,the renewal of the space dimension vitality foundation and the continuous renewal of the time dimension vitality.The crowd dimension proposes updating strategies for changing the status of single user type,meeting the demands of different types of users and real-time monitoring of the use of public space.The spatial dimension mainly improves and optimizes the spatial systematicness,accessibility,enclosure,difference and interaction,which are summarized as five basic updating design rules : ‘ Lian ',‘ Da ',‘ Wei ',‘ Zhi ' and ‘ Tong '.The time dimension puts forward the whole domain and full time vitality renewal strategy.Through the investigation of the use of public space in Hanyu Jingu block,this thesis analyzes the current public space use problems and real demands of this type of key areas.The connotation of public space vitality in key areas and the renewal strategies or design methods of population,time and space dimensions are of reference significance for decision makers,designers and other relevant practitioners to formulate the renewal design scheme or strategy of the same type of key areas and carry out relevant research.