An efficient 3D morphological analysis framework for pedestrian-level thermal stress assessment in megacities: Integrating large-scale modeling and physical simulation Publication date: 15 March 2026 Source: Sustainable Cities and Society, Volume 139 Author(s): Qipeng Deng, Gengyuan Liu, Ni Xue, Weicen Chang, Zhi Li, Qing Yang, Sana Sohail, Meirong Su