Research On The Identification Of High Vigorous Urban Streets Based On Multisource Data

As the "spatial context" of a city,streets are not only the "link" connecting various parts of the city,but also the performance of their spatial vitality is an important indicator of the level of urban development.Especially in the context of the current transformation of urban construction from "incremental expansion" to "stock improvement",the research on the vitality of street space has become a tool for urban researchers to improve the quality of urban public space,An important way to meet the increasingly rich living needs of citizens.However,at present,how to scientifically and accurately judge and screen the high vitality street space of a city has become an important research topic in the study of street space vitality.In order to solve this problem,this article has carried out the following four aspects of research work:(1)Using the functions of keyword co-occurrence,keyword clustering,keyword mutation,and collaborative analysis in Cite Space software,data processing was performed on 473 Chinese and 206 English literature selected,respectively,to draw a knowledge map and form a visual analysis.They are summarized in terms of time development,cooperation between countries and institutions,and research content at home and abroad.After screening and analysis,it is found that there are few or no articles directly studying the identification of high vitality streets,but there are a large number of articles studying the spatial vitality of streets,which is of great help to the exploration of the theoretical basis and identification methods of this article.(2)Based on summary research and various theoretical studies,explore the generation mechanism of street spatial vitality.Finally,it is concluded that the vitality mechanism is generated by the interaction between the biological behavior end and the spatial carrier end.Therefore,this article has constructed a behavioral and carrier side evaluation index system to identify and evaluate high vitality streets.The carrier side has constructed a street space vitality identification evaluation system that includes three types of primary indicators: natural carriers,social carriers,and economic carriers,as well as four types of secondary evaluation indicators: plant landscaping,street facility carrier attributes,business types,effective centers,and multiple tertiary evaluation factors.The behavioral side uses the population travel thermal density for identification and evaluation research.(3)Through field research,a large number of original data on the spatial carrier side and behavior side of streets have been obtained.Through programming a crawler language,a total of 10620 POI street spatial carrier data from the Gaode Map were crawled,all of which were the latest original POI carrier data from the Gaode Map in2021.After being converted by Arc GIS software,the POI point distribution map of Haidian Island,Haikou City,was obtained.In this study,we selected 172162 anonymous user records of LBS location trajectory points recorded in Haidian Island,Haikou City,on the seventh day of November 2021.After being converted by Arc GIS software,wait until the POI point distribution map LBS thermal point distribution map of Haidian Island in Haikou City is obtained,and convert vector data to finally establish the original database of sample streets.(4)Based on spatial carrier side(POI),behavioral side(LBS),and field survey data,this study uses shannon wiener index and entropy weight TOPSIS analysis methods to identify and evaluate the carrier side and behavioral side high vitality streets of 34 streets in Haidian Island,Haikou City.Through comparison,it is found that the quantitative results are basically consistent with the actual performance,so the scientificity and feasibility of this evaluation method are determined.Finally,the sample streets in the study area were ranked between the carrier side and the behavior side of the high vitality streets.The comparison results showed that the high vitality streets in Haidian Island,Haikou City are mostly life service oriented streets,with the top five being Hai’an Road(0.095),Sanxi Road(0.0868),Erdong Road(0.0807),Anmin Road(0.0666),and Wuxi Road(0.0587).After analysis,effective economic carriers have a significant contribution to the generation of street vitality.After the above research,this article explores a set of scientific and feasible methods for the identification of high vitality streets,solving the problem of rapid and accurate identification of urban high vitality streets.It provides a certain reference basis for future intelligent urban management.