统计与数据科学学院知识库

       自 2018 年新版《城市居住区规划设计标准》出台以来，居民生活便利度就变得尤为重要。居民生活便利度是评价宜居城市的重要影响因素之一。考虑到不同城市生活服务设施对人们生活方式的影响差异，从城市居民的具体生活便 利需求入手，采用了不同类别的兴趣点（Point of Information，POI）数据、相 关矢量（街道范围、行政区范围）数据等，基于居民生活服务设施对城市居民 便利度进行测度分析。

       首先，综合运用文献研究法，借鉴已有研究和标准规范，以及学术研究进 展，基于 POI 数据建立居民生活便利评价指标体系。其次，利用了城市居民问 卷调查大样本，以城市居民的日常生活经验为依据，参照德尔菲法设定了城市 居民生活便利指数评估标准权重，构建城市居民生活便利指数，对城市居民生 活便利度进行测度。最后，以兰州市城关区作为案例城市，对各街道居民生活 便利度测度进行评测，分析兰州市城关区各街道居民便利程度。运用核密度分 析法和黄金分割法，系统性的分析了兰州市城关区生活设施的具体空间分布特 征进行生活设施空间可视化分析，以此反映兰州市居民生活服务设施的分异规律。

      结果表明，城市生活的日常购物设施、餐饮服务设施、医疗设施，以及交通设施对城市居民生活便利指数作用相对显著，表明基于 POI 数据构建的城市 居民生活便利指数对衡量城市居民生活便利度存在合理性与可行性。

      Since the introduction of the new version of the "Urban Residential Area Planning and Design Standards" in 2018, the convenience of residents' lives has become particularly important. The convenience of living is one of the important influencing factors for evaluating livable cities. Considering the differences in the impact of different urban life service facilities on people's lifestyles, starting from the specific life convenience needs of urban residents, different types of Point of Information (POI) data and related vector (street range, administrative district range) data were used to measure and analyze the convenience of urban residents based on residents' life service facilities.

    Firstly, the literature research method was comprehensively used, the existing research, standards and academic research progress were used to establish an evaluation index system of residents' living convenience based on POI data. Secondly, based on the daily life experience of urban residents, the evaluation standard weights of the daily life convenience index of urban residents were set with reference to the Delphi method, and the living convenience index of urban residents was constructed to measure the convenience of urban residents. Finally, taking Chengguan District of Lanzhou City as a case city, the measurement of the convenience of residents in each street was evaluated, and the convenience of residents in each street of Chengguan District of Lanzhou City was analyzed. Using the kernel density analysis method and the golden section method, the specific spatial distribution characteristics of living facilities in Chengguan District of Lanzhou City were systematically analyzed, and the spatial visualization analysis of living facilities was carried out, so as to reflect the differentiation law of residents' living service facilities in Lanzhou City.

     The results show that the daily shopping facilities, catering service facilities, medical facilities, and transportation facilities of urban life have a relatively significant effect on the convenience index of urban residents, indicating that the convenience index of urban residents constructed based on POI data is reasonable and feasible to measure the convenience of urban residents.