Golparvar-Fard, M; Peña-Mora, F and Savarese, S (2011) Integrated sequential as-built and as-planned representation with D 4AR tools in support of decision-making tasks in the AEC/FM industry. Journal of Construction Engineering and Management, 137(12), pp. 1099-1116. ISSN 0733-9364
Abstract
The significant advancement in digital imaging and widespread popularity of digital cameras for capturing a comprehensive visual record of construction performance in the architecture, engineering, construction, and facility management (AEC/FM) industries have triggered an extensive growth in the rate of site photography, allowing hundreds of images to be stored for a project on a daily basis. Meanwhile, collaborative AEC technologies centering around building information models (BIMs) are becoming widely applied to support various architectural, structural, and preconstruction decision-making tasks. These models, if integrated with the as-built perspective of a construction, have great potential to extensively add value during the construction phase of a project. This paper reports recent developments from research efforts in (1)automated acquisition of as-built point-cloud models from unordered daily site photo collections and geo-registration of site images, (2)automated generation of four-dimensional (4D) as-built point-cloud models, and (3)semiautomated superimposition of the integrated as-built model over 4D (three dimensions plus time) BIMs to generate integrated 4D as-built and as-planned visualizations. The limitations and benefits of each modeling approach, the motivations for development of 4D augmented-reality (D 4AR) environments for integrated visualization of as-built and as-planned models, the perceived and observed applications, and the benefits in seven case studies are discussed. Not only does a D 4AR model visualize construction processes and performance deviations, it can also be used as a tool for automated and remote monitoring of progress and safety, quality control, and site layout management, and enables enhanced coordination and communication.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | computer vision; computer-aided design; information technology; multiple-view geometry; photography; structure and motion |
| Index terms: | case study, becoming, geometry, deviation, construction performance, acquisition, modelling, quality control, dimension, construction phase, coordination, computer vision, site layout, remote monitoring, motivation, decision-making, as-built model, construction process, computer aided design, visualization, information technology |
| Subjects: | building construction, decision analysis, philosophical process, monitoring and control systems, design practice, management, computer vision, technical documentation, psychology, analytical methods, project delivery, financial and cost management, site logistics, health monitoring assessment and metrics, performance assessment, business, mathematical modelling, data collection methods, computational design, computing systems |
| Topics: | Governance, Risk Management, Engineering Principles, Project Management, Research Practice, Health and Safety, Business Strategy, Cost Management, Site Management, Organizational Design, Human Resources, Quality Management, Digital Applications, Design Practice |
| Descriptive scope: | 4 PCEA |
N.B. Descriptive scope is a count of how many of the five facets of empirical research are indicated by the words used in title, abstract and keywords. It is not intended as a judgement on the research; merely a count of the kind of word we would expect to indicate Phenomenon, Concepts, Theoretical framing, Empirical techniques, Analytical techniques. If all five are present, then a code of “5 PCTEA” will indicate this. If you feel the coding for this record is questionable, we welcome discussion around the terms we matched or the way we categorized them. The facet you would expect may not be coded, or a facet may be coded inappropriately. This can also bear on a larger question, of which facets should be treated as defining in construction management research. Please get in touch, and we will look at it. More details here