IFC Extension for Road Structures and Digital Modeling

This paper introduces an information modeling technique for road structures which include roads, bridges and tunnels. The Industry Foundation Classes (IFC) of BuildingSMART, which has become a de-jure standard for exchange of the Building Information Modeling (BIM) data in the AEC industry, was employed to develop a data model. Spatial and physical components of the road structures were identified and added into the IFC in order to capture the semantics of shape objects in a 3-D model. This paper also demonstrates how the structural components are hierarchically aggregated in digital modeling of road structures. (C) 2011 Published by Elsevier Ltd. Selection