Research on an Integrated Graphical Model-Based Method for Two- and Three-Dimensional Model Management in Railway Engineering.

In response to the numerous challenges present in the current management of railway engineering graphical information, including poor data collaboration among project stakeholders, low information flow, and insufficient correlation between 2D drawings and 3D models, this paper integrates the characteristics of abundant data volume and multidisciplinary aspects in railway engineering graphical information. Drawing upon theoretical foundations such as digital model separation, model lightweighting, and database languages, along with leveraging technologies such as Web Graphics Library (WebGL) - based 3D engines and specialized Engineering Breakdown Structure (EBS) encoding tailored to railway engineering, the paper presents an integrated approach for managing two- and three-dimensional models in railway engineering based on a unified graphical model. This approach is rooted in the use of Globally Unique Identifier (GUID) to tightly associate 2D drawings and 3D models, while also standardizing data formats and sharing protocols. As a result, it significantly enhances the efficiency of project management and collaboration within engineering construction projects, effectively breaking down data silos. The method has been successfully applied to a railway engineering project, offering a reliable and innovative solution for managing its information deliverables.