历史街区是展现城市空间品质、凸显活力特色的关键载体, 对其活力的研究与提升, 是推动城市可持续发展的重要路径。本文以甘肃省张掖市历史街区为研究样本, 整合百度热力图、POI数据等多源信息, 运用ArcGIS工具开展可视化分析, 结合街区现状特征深入探究其活力水平及影响因素。研究结果显示: 城市POI要素与街区活力呈正相关关系, 且该要素对工作日街区活力的影响更为显著; 在各类POI中, 购物消费类POI对街区活力的驱动作用最强。基于上述分析结论, 结合张掖历史街区的自身特质, 本文针对活力分析提出提升相应策略, 以此为同类型历史街区的活力优化提供科学参考。

Historic district is an key carrier for showcasing the quality of urban space and highlighting vibrant features. Studying and enhancing the vitality of historic districts can effectively promote the sustainable development of cities. This paper takes the historical district of Zhangye City, Gansu Province as an research example, integrates multiple sources of information such as Baidu heat map and POI data, uses Arc- GIS tools to conduct visual analysis, and combines the current characteristics of the blocks to explore their vitality level and influencing factors in depth. The research results show that there is a positive correlation between urban POI elements and neighborhood vitality, and this element has a more significant impact on neighborhood vitality on weekdays; Among various POIs, shopping and consumption POIs have the strongest driving effect on neighborhood vitality. Based on the above analysis conclusions and combined with the analysis results and the characteristics of historical blocks, the corresponding vitality promotion strategies are proposed to provide scientific guidance for the vitality promotion of the same type of historical and cultural blocks.