Research on Optimization of the Signage System of the Potala Palace Scenic Area in Tibet

Based on grounded theory, this study systematically analyzes the current status and challenges of the Potala Palace signage system in terms of its orientation, cultural transmission, and user experience. Through interviews with visitors, management personnel, and design experts, a three-stage approach using open coding, principal axis coding, and selective coding was employed to extract 73 concepts and 24 categories, which were summarized into three core dimensions: "Signage Status," "Signage Evaluation," and "Signage Optimization." The results indicate that the existing signage system has significant deficiencies in spatial coverage, cultural expression, multilingual adaptability, material weather resistance, and digital experience. To address this, this paper proposes systematic improvement strategies encompassing spatial layout optimization, deep depiction of cultural symbols, expansion of multilingual services, and integration of digital technologies. A practical and transferable optimization model is constructed, providing a theoretical basis and practical reference for upgrading the signage system of plateau cultural heritage sites.