The CBR method of pavement design gives the total thickness requirement of the pavement above a subgrade. In revised CBR method for the design of flexible pavement IRC has provided charts for different CBR in which relation between pavement thickness and cumulative traffic axle is given. In this method, the chart contains several curves (A, B, C, D, E, F, and G) which represent the different levels of traffic intensities. Based on this we can find out the layers thicknesses.