摘要:针对二维设计专业协调困难、可视化程度低、汇报难以理解及异地沟通不便等问题，本文在方案决策中探索BIM+GIS数据集成应用，形成一套低成本、高质量的数字化设计体系，促进方案决策的科学性。利用游戏引擎高渲染优点，融合二维数据、BIM、GIS、灯光、绿化和实景三维等数据，开发高质感方案协同汇报系统，实现可视化征拆分析、多专业协同设计和动态方案比选等场景应用。该设计体系于蓝谷至胶东国际机场快速通道工程进行实际应用，以高效数据生产为前提，多源数据融合为核心，场景集成应用为手段，数字化方案决策为目标，实现高质量数字化方案设计，提高各参与方之间协作与沟通效率，提升工程建设质量，进一步促进数字化设计在交通工程中的落地应用，为推动交通数字化转型奠定基础。

Abstract: Regarding the difficulties in coordination of 2D design professions, such as low visualization, difficult understanding of reporting and inconvenience of off-site communication, this paper explores an integrated application of BIM+GIS data in scheme decision making to form a low-cost, high-quality digital design system and promote the scientific nature of scheme decision making. Taking advantages of high rendering of the game engine, the paper integrates 2D data, BIM, GIS, lighting, greening and realistic 3D data to develop a high quality scheme collaborative reporting system, which realizes scenario applications such as visualization of expropriation and demolition analysis, multi-disciplinary collaborative design and dynamic scheme comparison. Applied in the Langu to Jiaodong International Airport Expressway Project, this system is built for efficient data production and focuses on the multi-source data integration by using scenario integration application to obtain digital scheme decision and finally achieve high-quality digital scheme design, which improves the efficiency of collaboration and communication between various parties involved, enhances the quality of engineering construction, and further promotes the application of digital design both in traffic engineering and on the ground, and lays the foundation for promoting the digital transformation of transportation.