Bosche, Frederic Nicolas

Haas, Carl T.

Haas, Ralph

Turkan, Yelda

English

The construction industry remains one of the riskiest of all. This risk is mainly the result of a poorly controlled, and thus uncertain, environment. For instance, construction progress is often improperly controlled, resulting in some unnoticed errors with considerable impact on later project activities, and ultimately project success. Better progress control requires, among other things, better project threedimensional (3D) as-built status control. Until recently, comprehensive and accurate 3D as-built status control remained almost impossible because the lack of adequate technology made it too time- and labour-intensive. However, the progress made in the last two decades in 3D (even 4D) modelling, and more recently in laser scanner (and also photogrammetry), is such that fast and accurate 3D as-built status control is now conceivable. In this paper, a system for automated construction progress control using laser scanning and 4D modelling is presented. Given a laser scan of a construction site and its acquisition date, the system quasi-automatically recognizes the building elements that (1) are expected to be built at that date and (2) visible in this scan.Results from multiple scans obtained on the same date but from different locations can be aggregated, and the combined recognition results are used to automatically infer site progress status, and consequently update the schedule. Experimental results demonstrate these features and the significant potential of this approach

Heriot Watt Pure

3D laser scanning market red hot:

Areas of application for 3D and 4D models on construction projects,

Automated construction activity monitoring system, &quot;Advanced Engineering Informatics&quot;,

Automated recognition of 3D CAD model objects and calculation of asbuilt dimensions for dimensional compliance control in construction, &quot;Advanced Engineering Informatics&quot;,

Benefits and barriers of construction project monitoring using hi-resolution automated cameras, &quot;J. of Construction Engineering and Management&quot;,

Calibration experiments of a Laser Scanner&quot;, Report by the BFRL,

Construction performance&quot;, Report by the Comptroller and Auditor General.

Feasibility study of 4D CAD in commercial construction, &quot;Journal of Construction Engineering and Management&quot;,

LADARs for construction assessment and update, &quot;Automation in Construction&quot;,

Project progress measurement using CAD-based vision system,

Research in automated measurement of project performance indicators, &quot;Automation in Construction&quot;,

Simulation of automated data collection on buildings,

Synchronization-based model for improving on-site data collection performance, &quot;Automation in Construction&quot;

The need for prompt schedule update by utilizing reality capture technologies: A case study, &quot;Proc. of the CRC&quot;,

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Fusing 4D modeling and laser scanning for automated construction progress control

Fusing 4D modeling and laser scanning for automated construction progress control

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Heriot Watt Pure

Heriot Watt Pure