基于决策树模型的老年人生活圈便利度评价及影响因素分析——以天津市为例  

Evaluation of Convenience in Elderly Life Circle Based on Decision Tree Model and Analysis of Influencing Factors:A Case Study of Tianjin

作　　者：吴芳凝 赵伟[2,3,4] 陈非[2,4] WU Fangning;ZHAO Wei;CHEN Fei

机构地区：[1]北京大学深圳研究生院城市规划与设计学院 [2]天津大学建筑学院 [3]天津大学住房和城乡建设部适老建筑与环境重点实验室 [4]天津大学天津市健康人居环境与智慧技术重点实验室

出　　处：《城市环境设计》2025年第2期61-65,共5页Urban Environment Design

摘　　要：随着我国老龄化进程的加速,提升老年人生活圈的便利度已成为城市规划和公共服务的关键议题。本文以天津市和平区、河西区和河东区为研究范围,构建了老年人社区生活圈便利度的评价方法,并采用决策树模型深入分析其影响因素。研究结果表明,容积率、路网密度和人口密度是影响老年人生活圈便利度的关键因素,其中容积率重要性最高,路网密度和人口密度次之,住宅区密度、土地利用混合度和距最近地铁站距离重要性相对较小。本研究为老年友好型设施布局提供了参考,有助于促进老年人生活质量的提升。With the rapid aging of China s population,enhancing the convenience of elderly life cirdes has become a critical focus in urban planning and public services.This study examines Heping District,Hexi District,and Hedong District in Tianjin as the research scope,developing an evaluation method for assessing the convenience of elderly life cirde.Using a decision tree model,the study conducts an in-depth analysis of the influencing factors.The findings reveal that plot ratio,road network density,and population density are key determinants of the convenience of life circle,among them the plot ratio is the most significant factor affecting the convenience of life cirdes for the elderly,followed by road network density and population density.In comparison,residential area density,land use mix,and the distance to the nearest subway station have relatively less impact.This research offers valuable insights for optimizing the distribution of elderly-friendly facilities,contributing to improvements in the quality of life for old people.

关 键 词：老年人 生活圈 决策树模型 便利度 天津 

分 类 号：TU984.12[建筑科学—城市规划与设计]