Application of Civil Information Modeling for Constructability Review for Highway Projects

Usually, it is necessary for general contractor to handle constructability review of infrastructure and civil projects during the construction phase. Generally, constructability review usually be analyzed and applied at job onsite using 2D CAD drawings. The constructability review integrated with 2D CAD drawings usually cause timeconsuming problems and problem misunderstandings. Civil information modeling (CIM) is one of the latest concepts and technologies in infrastructure and civil projects. The major function of CIM includes presenting and simulating operations by 3D model, and making constructability review through 3D BIM models. In order to enhance the performance of constructability analysis in infrastructure projects, this study proposes a CIM-based constructability review framework and approach for general contractors during the construction phase. The proposed approach is then applied in the selected highway case study in Taiwan to demonstrate the effectiveness of CIM-based constructability review in practice. Finally, this study identifies the benefits, limitations, and facing problems through the case study. Finally, conclusion and suggestion are summarized for further applications and researches.