Research on Spatial Vitality of Historical and Cultural Blocks Based on Space Syntax and POI Data

As an important way of urban sustainable development, the renewal of historical and cultural blocks mostly depends on perceptual cognition and lacks the guidance of quantitative analysis. This study uses space syntax and POI data to analyze the spatial structure of Guangzhou 's traditional central axis historical and cultural blocks, predict the volume of people and use the heat map for verification. Through the coupling analysis, the relationship between spatial structure, tourist attraction distribution and commercial distribution is revealed, and the problem space and potential space are identified. The results show that: the overall accessibility is high, but the crossing degree, Intelligibility (R 2 is about 0.3) and synergy are generally low (R 2 is about 0.17), reflecting the lack of identifiability and attractiveness of streets; Accessibility and commercial network distribution are basically coupled (spatial overlay analysis shows that 65% of high-density commercial POIs are distributed on the streets with the top 30 % of integration), but there are some dislocations; The streets such as Dama Station, Education Road, Gaodi Street and Taikang Road have strong commercial development potential, and some streets connecting Beijing Road have the risk of excessive traffic. Based on the above findings, the study proposes a classification space optimization strategy to provide a scientific reference for the renewal and vitality improvement of historical blocks.