Examining Spatial Variations in Walking Activity Among Older Adults Considering the Impact of Topographical Characteristics

As global demographics tilt toward an aging populace, walking’s role in promoting senior health and social engagement is becoming paramount. However, few studies focus on walking activity among older adults in mountainous cities, and the influence of mountainous terrains on older adults’ walking patterns remains unknown. This study bridges this information gap using a comprehensive 2021 travel survey that captures 8,554 senior walking trips in Guiyang and applies geographically weighted regression (GWR) for in-depth analysis. The analytical results show the important influence of topographic characteristics on the walking behaviors of the aging population, though this influence varies by location. Peripheral terrains appear to be a challenge as they shorten walking distances for older adults, whereas the central regions—with moderate average gradients and path undulation degrees and gentle slope ratios—contribute to the walking experience. Interestingly, older adults in higher age groups are more sensitive to changes in walking paths, although sensitivity to slopes near home remains similar across different age groups. Beyond topography, the study dissects the nuanced influences of built environments and sociodemographic factors, providing a detailed landscape of determinants. By integrating these topographical nuances into the assessment of senior walking behaviors, our findings make a groundbreaking contribution. These findings contribute to implementing more effective and locally tailored interventions, offering valuable guidance and support for developing age-friendly mountainous cities.