BACKGROUND Understanding how built environment characteristics influence recreational walking is of the utmost importance to develop population-level strategies to increase levels of physical activity in a sustainable manner. PURPOSE This study analyzes the residential and non-residential environmental correlates of recreational walking, using precisely geocoded activity space data. METHODS...

What makes a neighborhood space vital? This article explores the possibility that the presence of trees and grass may be one of the key components of vital neighborhood spaces. We report on 758 observations of individuals in 59 outdoor common spaces in a residential development. Twenty-seven of the neighborhood common spaces were relatively green, whereas 32 were relatively barren. Results indi...

Using high-resolution remotely sensed imagery to timely detect distribution and expansion of residential area is one of most important jobs of national 1:5 spatial database updating. In view of complicated spatial characters of residential area and working disable of current automatic interpretation methods based on spectral features on high-resolution remotely sensed imagery, a classifier base...