基于步行性与污染物暴露空间格局比较的建成环境健康效应——以南京为例

陈曦, 冯建喜

Health effects of built environment based on a comparison of walkability and air pollution:A case study of Nanjing City

Xi CHEN, Jianxi FENG

表2 交叉口密度、适宜步行道路占比与街区尺度衰减

Tab.2 Intersection density, percentage of suitable walking roads, block size, and attenuation rates

交叉口密度/(个/km2) 衰减率/% 适宜步行道路占比/% 衰减率/% 街区尺度/m 衰减率/% >77 0 >88 0 <120 0 58~77 1 69~88 1 120~150 1 47~58 2 51~69 2 150~165 2 35~47 3 33~51 3 165~180 3 23~35 4 12~33 4 180~195 4 <23 5 <12 5 >195 5