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Article

Augmented Reality to Enable Users to Identify Deviations for Model Reconciliation

School of Sustainable Engineering and the Built Environment, Arizona State University, Tempe, AZ 85281, USA
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Academic Editor: Svetlana J. Olbina
Buildings 2021, 11(2), 77; https://doi.org/10.3390/buildings11020077
Received: 31 January 2021 / Revised: 16 February 2021 / Accepted: 20 February 2021 / Published: 23 February 2021
Effective use of Building Information Modeling (BIM) during operation typically requires modeled content to accurately match the built spaces, which necessitates effective field verification techniques to ensure that BIM content matches the actual built conditions. Some contractors leverage laser scanning and other reality-capture technologies to verify modeled content prior to turnover, but these approaches can be time- and resource-intensive. Augmented reality (AR) enables users to view BIM content overlaid on their field of view of the built space. Research suggests potential for using AR for tasks related to field verification, but a study that systematically explores the specific types of deviations that can be detected with this technology is missing from the current literature. This paper tasks participants with using immersive AR to identify deviations from BIM in a ceiling plenum space that includes installed Mechanical, Electrical and Plumbing (MEP) components, which would typically be included in a coordinated BIM. The results suggest that AR can enable users to effectively identify large deviations and missing building elements. However, the results do not indicate that AR effectively enables users to identify small deviations and can potentially lead to identifying false positive observations, where accurately constructed elements are perceived as deviating from BIM. These results suggest that immersive AR can effectively be used to check whether recently built elements conform to the intended BIM in instances where speed of verification is more important than adhering to strict tolerances. For instances where accuracy (less than two inches) is critical, the results of this work suggest that AR can be used to help determine where in the building more accurate, but more resource-intensive, reality-capture technologies should be used. View Full-Text
Keywords: augmented reality; deviation detection; quality control; laser scanning augmented reality; deviation detection; quality control; laser scanning
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MDPI and ACS Style

Chalhoub, J.; Ayer, S.K.; McCord, K.H. Augmented Reality to Enable Users to Identify Deviations for Model Reconciliation. Buildings 2021, 11, 77. https://doi.org/10.3390/buildings11020077

AMA Style

Chalhoub J, Ayer SK, McCord KH. Augmented Reality to Enable Users to Identify Deviations for Model Reconciliation. Buildings. 2021; 11(2):77. https://doi.org/10.3390/buildings11020077

Chicago/Turabian Style

Chalhoub, Jad, Steven K. Ayer, and Kieren H. McCord. 2021. "Augmented Reality to Enable Users to Identify Deviations for Model Reconciliation" Buildings 11, no. 2: 77. https://doi.org/10.3390/buildings11020077

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