IntroductionAlthough a typical construction project is limited by its footprint and size, a transportation project such as a highway is primarily a linear project that includes many repetitive and similar elements. A highway interchange project is less extensive than a long, straight road, but it is more complex. Projects involving the reconstruction or expansion of existing highways are sensitive and traffic must be managed so that the impact is as limited as possible. The construction process must be carried out while minimizing inconvenience to the public, hence the need to plan as many details as possible on the sequencing, which increases the complexity of the project. Additionally, transportation projects are always characterized by right-of-way acquisition, a sensitive process that determines the start of construction. Another important challenge when dealing with a transportation project is the relocation of utilities to avoid any conflicts. As a result, transportation projects present many challenges: design complexity, traffic control management, right-of-way acquisition, utility relocation, as well as completing projects on time and on budget. Transport ministries, A&E companies, contractors and other transport organisations. Technology-driven organizations must respond to these challenges as effectively as possible. They want to avoid delays and cost overruns and achieve a successful project. They express a need for projects that are biddable and achievable with as few change orders and litigation as possible (Mc Manus et al 1996) [1]. Constructability reviews are essential processes that can be implemented to ensure these challenges are addressed satisfactorily. They identify potential planning and design flaws that can impact the project...... middle of paper ...... model » Structural Engineering World Wide, T191-1 (CD ROM Proceedings), Elsevier Science Lt[4] Gao, J., Fischer, M., (2008). “Framework and case studies comparing implementations and impacts of 3D/4D CAD modeling across projects”, CIFE technical report.[5] Staub-French, S., Russell, A., Tran, N., (2008). “Linear Scheduling and 4D Visualization,” Journal of Computing in Civil Engineering, pp. 192-205.[6] Chevallier, N., Russell, AD, (1998). “Automated generation of schedules”. Canadian Journal of Civil Engineering, 25(6), 1059–77.[7] Koo, B., Fischer, M., (2000). “Feasibility Study of 4D CAD in Commercial Construction”, Journal of Construction Engineering and Management, Vol 126, No4, pp. 251-260.[8] Staub-French, S., Khanzode, A., (2007). “3D and 4D Modeling for Design and Construction Coordination: Issues and Lessons Learned,” ITcon Vol. 12, pages.381-407.