A Review on Application of 4D CAD Modeling for Planning & Scheduling for a Residential Building Construction Project

This study presents an Application of 4D CAD Modeling for Planning & Scheduling. The current planning process is largely manual and time-consuming. There are number of traditional methods for planning and scheduling of construction projects like Bar chart, CPM network technique. One of the technologies developed to improve the coordination, communication of data, design, planning and visualization of construction projects is “Four Dimensional Computer Aided Design (4D CAD)�. 4D CAD model is a computer generated model of structure. Therefore it is used to stimulate graphically. 4D models can give a clear picture of project & idea to future possible impact while planning which will occur during construction. 4D model is the promising tool for construction planning. If only converting this 2D drawing is a tedious task, combining these 2D drawings with safety. planning creates more difficult tasks. In order to address the problems, this paper discusses our research in integrating construction scheduling and safety planning in a 4D environment. Use of 4D Model contributed in time saving and ultimately cost of construction by reducing the delay. 4D models help to improve construction plans as compared to traditional planning tools.