Research questionHow can open versus gated residential compounds be mapped reproducibly at metropolitan scale?Qualitative and small-scale studies make it difficult to compare access conditions across an entire city. Without consistent compound-level maps, analyses of mobility, public-service access, and equity cannot be reproduced at metropolitan scale. Latest papersRecent research connected to this question, newest first.Urban Boundaries, Social Barriers: A Benchmark and Vision-Centric Framework for Mapping Gated Communities and Equity ImplicationsThe evidence focuses on China’s Greater Bay Area and covers 37,444 residential compounds with boundary polygons, high-resolution satellite imagery, Chinese metadata, structured attributes, expert-verified labels, inter-annotator reliability, and official evaluation splits. It also reports multimodal recognition using imagery, text, and structured cues, followed by metropolitan mapping and equity-oriented analysis; generalization beyond this setting is not established.research paper · Sep 3, 2026