把城市“搬”进数字空间

Core Insights - The article discusses the implementation of a 3D geographic information system in Urumqi, Xinjiang, which enhances urban planning and management through advanced visualization and data integration techniques [1][2][3][4] Group 1: System Features - Urumqi's 3D geographic information system utilizes real-world 3D models to improve the efficiency and accuracy of land planning and evaluation, with over 180 land plots reviewed and nearly 300 promoted using this technology [1] - The system incorporates various technologies, including building information modeling, geographic information, and the Internet of Things, to create a robust data foundation for urban management [1] - A multi-dimensional urban information model is established, integrating surface and underground data, as well as 2D and 3D representations, to support sustainable urban development [3] Group 2: Technical Innovations - The system employs a differentiated modeling strategy for various data layers, significantly enhancing modeling efficiency and addressing the complexities of traditional 3D models [2] - Advanced texture mapping techniques are used to ensure realistic representations while optimizing data for performance, allowing for rapid scene loading and analysis [2] - A cloud service platform is developed, featuring a comprehensive lifecycle management system for buildings, which includes data governance tools and a digital twin display software [3] Group 3: Applications and Impact - The system supports various urban applications, such as old community renovations and urban health assessments, by providing essential data for decision-making [4] - It transforms the traditional management model by integrating spatial and business data, improving collaboration and precision in urban construction management [4] - The initiative has led to the development of several important research outcomes, including software copyrights and local standards for municipal infrastructure data [4]