A critical analysis of building Information Modelling systems used in construction projects. The specific questions to be answered are what are the practical applications of 3D-laser scanners? How can 3D-laser scanning be integrated with BIM to maximise information gathering and processing for the different applications? What are the benefits and challenges of adopting integrated 3D laser scanners and BIM in practice? After addressing these research questions, this paper concluded by a way of summary and further discussed the direction of future research. This study investigates the use of 3D- laser scanners together with BIM in the optimisation of information exchange across the life cycle of a construction project. However, the nascent nature of BIM and especially 3D laser scanners means the nexus of these technologies is yet to be fully understood. By appropriately integrating data from 3D laser scanners with BIM can lead to greater benefits in managing construction information. Although the potential of BIM in the capture and exchange of construction information has gained interests amongst researchers, the same cannot be said of the 3D-laser scanners. Emerging Building Information Modelling (BIM) and 3D laser scanners are amongst the leading technologies being recommended for use in construction. The upscaling of innovative information and communication technologies to a feasible application within the construction industry is receiving increasing attention, research and funding from public and private agencies.

3d laser scan model simplifier