in planning a road the first thing to do is to repair the ground for the shoulder of the road so that the CBR is needed, the way is to dig the shoulder of the road.
galian.JPG
then make a pile on the excavation
URPIL.JPG
after that did a stretch of base B
lpb.JPG
after that did a stretch of base A
lpa.JPG
after the stage has been passed then the next is pavingAC BC.JPG