考虑城市建成环境非线性作用的通勤时间模型  

Residents’ commuting time model under the nonlinear impact of urban built environment

作　　者：吴静娴 申华鹏 韩印[1] 杨敏[3] Jing-xian WU;Hua-peng SHEN;Yin HAN;Min YANG(Business School,University of Shanghai for Science and Technology,Shanghai 200093,China;Key Laboratory of Earthquake Engineering and Engineering Vibration,Institute of Engineering Mechanics,China Earthquake Administration,Harbin 150080,China;School of Transportation,Southeast University,Nanjing 210096,China)

机构地区：[1]上海理工大学管理学院,上海200093 [2]中国地震局工程力学研究所地震工程与工程振动重点实验室,哈尔滨150080 [3]东南大学交通学院,南京210096

出　　处：《吉林大学学报（工学版）》2022年第11期2568-2573,共6页Journal of Jilin University:Engineering and Technology Edition

基　　金：中国地震局工程力学研究所基本科研业务费专项项目(2020D23);国家自然科学基金项目(52072066,71971140)。

摘　　要：为探索城市建成环境对居民通勤时间的非线性作用,以南京为例,构建了包含个人家庭属性、通勤出行特征和交通小区建成环境的梯度提升决策树模型。结果显示:三类属性中,居民通勤出行特征对通勤时间的累计影响程度最大(52%),建成环境影响次之(38.88%);建成环境指标对通勤时间的非线性作用显著,其中,区域用地混合度和居住用地占比都显现出显著的阈值效应。研究可为后续精准化城市区域规划和设计提供科学的理论与依据。To investigate the nonlinear impact of built environment on residents’ commuting time,a case study was conducted in Nanjing by using a Gradient Boosting Decision Tree. The model has considered the impact of socio-demographics,trip characteristics,and built environment at traffic analysis zone. The result shows that trip characteristics have the largest cumulative contribution on commuting time as high as52%,followed by built environment factors(38.88%). Significant nonlinear impacts of built environment have been presented. The nonlinear thresholds of land-use mix and residential ratio are identified. This study expects to provide supportive scientific references for urban future planning and design at the microlevel.

关 键 词：交通运输系统工程 建成环境 通勤时间 非线性影响 梯度提升决策树 

分 类 号：U491.1[交通运输工程—交通运输规划与管理]