This study proposes a 3D intelligent object model in highway construction to electronically represent a large amount of information in highway projects based on the international standard ISO 10303. Also known as STEP (Standard for the Exchange of Product), ISO 10303 is an open standard, and has been used for data exchange in building projects of the AEC industries. Motivated by the success from the building industry, this research attempts to apply an object based intelligent model in 3D highway modeling. In order to test the feasibility of the proposed approach, a prototype was developed and tested on a highway project in Seoul, Korea with a team led by Korean Institute of Construction Technology (KICT). The proposed 3D intelligent model was applied to build a 3D model and automatically derive cost/schedule estimates from the 3D object model. To develop a 3D object model in highway road construction, this paper explores different options such as Industry Foundation Classes (IFCs) and LandXML and establish a comprehensive object model for highway structures with different components such as roads, a bridge, and a tunnel as well as topographical representations that could be used for cost/schedule estimation.
Up until now, the process of obtaining spatial information for facilities management (FM) has been very laborious and tedious, even with the use of computer-aided facility management tools. The proposed research utilizes BIM based workflow to capture object attributes such that the building data created in a BIM model may be brought seamlessly into Facilities Management system rather than recreated. The proposed system not only imports geometry of walls, doors, windows, columns, and so on, but also retrieves attribute data associated with these objects. Therefore, queries can be executed to obtain -needed information, generate graphical or data-based reports, and identify interesting trends in facilities operations and maintenance for appropriate management. Since the proposed approach is objectbased, the system will automatically calculate or display the area of each space, and add additional information about each space such as occupant information, capacity, type, equipment and so on. Open BIM standards are used to retrieve or store information in a BIM model as that will facilitate the exchange of information between different FM systems. A prototype of the proposed system was developed in collaboration with the University of North Carolina at Charlotte (UNCC) FM department. The prototype was tested for its applicability and flexibility for the UNCC FM operations and maintenance management.
INTRODUCTIONEven though computer technology has progressed significantly over the past decade, the process of obtaining spatial information for facilities management (FM) continues to be very laborious and tedious. The general practice of collecting and storing data from a constructed facility is through the handover process, where the
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