Sub contractor service team called out to rig site for servicing the cherry picker, the team started from town without journey plan using uninspected vehicle and unauthorized driver. After reaching camp and stay overnight the team proceed to the location using short cut road (Electricity poles service and pipe line routes). The road was in bad condition as it is not paved, therefore and while driving in high speed the vehicle hit a high sand dune result in damaging the water radiator and passengers sustained minor bruises due to harsh impact.