基于居民时空行为的社区日常活动空间测度及活力影响因素研究——以南京市沙洲、南苑街道为例

新时期人本导向的社区生活圈规划转型关注居民的日常活动对社区空间的利用情况,从而反映出居民对社区公共服务设施的使用需求。但目前研究较少关注不同类型居民的差异化时空行为特征,不能有效应对社区居民的差异化需求。论文结合行为地理学的理论,利用手机信令数据,基于居民出行活动的频率和密度测度其核心活动空间和弹性活动空间,分析不同类型人群日常活动特征。以南京市沙洲和南苑街道为例,划定不同社区中,青少年、青年、中年和老年群体的日常活动空间,并从日常活动范围和活力的视角分析居民对社区空间利用的基本特征及群体间差异。研究结果表明,居民的日常活动空间表现出层次性、共享性和方向性,且不同年龄群体的日常活动空间存在显著差异;进一步利用相关性检验分析不同群体社区活力的影响因素,提出考虑不同群体活动空间和设施需求的公共服务设施差异化供给策略。研究有助于完善基于居民时空间行为测度社区日常活动空间的方法,丰富对社区居民差异化行为需求的认知。实证研究的结论对基于居民差异化空间和设施需求的社区公共服务设施配置具有一定指导意义。

Measurement of community daily activity space and influencing factors of vitality based on residents' spatiotemporal behavior:Taking Shazhou and Nanyuan streets in Nanjing as examples

In the new era of China's development, people's needs for living space have become diversified. At the community level, the transformation of the planning of a human-oriented community life circle needs to pay attention to residents' daily activities to use the community space, thereby reflecting residents' use of community public service facilities. This demands to identify the daily activity space of residents. However, current research has paid little attention to the differentiated spatial and temporal behavior characteristics of different types of residents, and cannot effectively respond to the diverse needs of community residents. Based on the theory of behavioral geography, this research proposed a method of using mobile phone signaling data to measure the core activity space and flexible activity space based on the frequency and density of residents' travel activities, and then analyze the characteristics of daily activities of different types of people. Taking Shazhou and Nanyuan streets in Nanjing City as examples, the daily activity space of adolescent, youth, middle-aged, and elderly resident groups in different communities was delineated, and the basic characteristics of residents'use of community space were analyzed from the perspective of daily activity range and vitality differences among groups. The research results show that the daily activity space of residents shows hierarchical, sharing, and directional features, and there are significant differences in the daily activity space of different age groups. Further, by using the correlation test to analyze the influencing factors of the vitality of different groups of the communities, we proposed a differentiated supply strategy for public service facilities that considers the activity space and facility needs of different groups. This research is helpful for improving the method of measuring the daily activity space of community based on the spatiotemporal behavior of residents, and enriching the understanding of the diverse behavior needs of community residents. The conclusions of the empirical research have certain guiding significance for the allocation of community public service facilities based on residents' diverse space and facility needs.