IntroductionWhile a typical construction project is limited by its footprint and size, a transportation project such as a highway is primarily a linear project comprising many repetitive and similar elements. A highway interchange project is less extensive than a long, wide straight road, but it is more complex. Projects involving the reconstruction or expansion of existing highways are delicate and traffic must be managed to minimize the impact. The construction process must be carried out while minimizing public inconvenience, hence the need to plan as many details as possible about the sequence, increasing the complexity of the project. Additionally, transportation projects are always characterized by right-of-way acquisition, a delicate process that triggers the start of construction. Another important challenge when tackling a transport project is the relocation of public services to avoid any conflicts. As a result, there are many challenges in transportation projects: design complexity, managing traffic control, acquiring right-of-way, relocating utilities, and even delivering projects on time and on budget. Departments of Transportation, EMS companies, contractors and other transportation Innovation-driven organizations must respond to these challenges as effectively as possible. They want to avoid delays and cost overruns and come up with a successful project. They express the need for projects that are feasible and achievable with as few change orders and litigation as possible [word] (Mc Manus et al 1996) [1]. Constructability reviews are essential processes that can be implemented to ensure that such challenges are satisfactorily addressed. Identify potential planning and design flaws that could 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 3D/4D CAD modeling implementations and impacts 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, A.D., (1998). “Automatic program generation”. 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 construction design and coordination: issues and lessons learned”, ITcon vol. 12, pages.381-407.