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Design and Validation of an Integrated CAD-to-5D BIM Process for Underground Utilities.

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Název: Design and Validation of an Integrated CAD-to-5D BIM Process for Underground Utilities.
Autoři: Lee, Jongseo, Lee, Seolhee, Kim, Yudoo, Moon, Il-Young
Zdroj: Buildings (2075-5309); Nov2025, Vol. 15 Issue 22, p4139, 36p
Témata: BUILDING information modeling, DIGITAL transformation, UNDERGROUND areas, COMPUTER-aided design software, GEOMETRY, COST control, SOFTWARE frameworks
Abstrakt: Underground utility projects still rely on 2D drawings, which fragments geometry, process, and cost information and raises the barrier to BIM adoption. There is a need for a practical method that preserves existing CAD workflows while achieving integrated, higher-dimensional management. This study proposes a unified framework that converts 2D CAD into 3D BIM and automatically combines work and cost information to produce 5D outputs in a single, interoperable model. The approach aims to maintain data continuity from design to construction, reduce manual modeling effort, and lower adoption costs. A prototype system and viewer were developed to validate the end-to-end flow and to confirm that geometry, schedule, and cost can be reviewed together. The framework offers a feasible path for digital transformation in underground utilities and can be extended toward 6D and 7D for performance and operations management. [ABSTRACT FROM AUTHOR]
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Abstrakt:Underground utility projects still rely on 2D drawings, which fragments geometry, process, and cost information and raises the barrier to BIM adoption. There is a need for a practical method that preserves existing CAD workflows while achieving integrated, higher-dimensional management. This study proposes a unified framework that converts 2D CAD into 3D BIM and automatically combines work and cost information to produce 5D outputs in a single, interoperable model. The approach aims to maintain data continuity from design to construction, reduce manual modeling effort, and lower adoption costs. A prototype system and viewer were developed to validate the end-to-end flow and to confirm that geometry, schedule, and cost can be reviewed together. The framework offers a feasible path for digital transformation in underground utilities and can be extended toward 6D and 7D for performance and operations management. [ABSTRACT FROM AUTHOR]
ISSN:20755309
DOI:10.3390/buildings15224139