Youth Visual Engagement and Cultural Perception of Historic District Interfaces: The Case of Kuanzhai Alley, Chengdu

Historic districts are key urban spaces that convey cultural heritage and support tourism and social interaction. As the spatial interface shapes form and perception, this study explores youth-oriented visual behaviour and cognitive preferences regarding historic street interfaces. Using Kuan-Narrow Alley in Chengdu as a case study, we analysed eye-tracking data to assess visual engagement with interface elements. Architectural components received the highest attention for Total Fixation Duration, Fixation Count, and Visit Count, while commercial elements yielded a longer Average Fixation Duration. A multiple linear regression model identified Historical Linguistic Landscape (β = 1.088), Street Permeability (β = 0.401), and Street Width-to-Height Ratio (β = 0.178) as significant predictors of perceived usability, with Historical Linguistic Landscape proving most influential. These findings underscore the value of preserving cultural significance in streetscape morphology and provide theoretical and practical insights from a youth-centric perspective. By integrating eye-tracking with morphological analysis, the study offers a novel approach to understanding visual perceptions in historic districts. Despite limitations in sample size and scope, the study provides solid insights, with future research needed to broaden contexts for greater generalisability.