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Recently, the visualization technique of numerical construction data has become essential in construction industry due to the extended application of BIM (Building Information Modeling) and various IT technologies. To build and apply a BIM tool, the interoperability between different modeling systems is being an important item. Specially, in the field of civil engineering project, the development of IFC (Industrial Foundation Class) code for 3D CAD object is under the conceptual phase. This study introduces cases of developing active BIM functions and IFC code that applicable to road project and proposes how to enhance data inter-operability to utilize the functions in an integrated manner.