3D Model + 1D Time = 4D is a method of creating a 4D sequence animation using a 3D model and a timetable (time) that represents planned activity for construction. Using this effective tool will allow our clients to visualize how the construction will progress. We focus on creating a 4D sequence that will assist our clients in better understanding their plans and reducing risks. ● 4D Construction Simulation ● Schedule Logical correction ● Risk Reduction ● Detecting Problems ● Look ahead schedule