Once reaching Anuradhapura town by road and travel up to Jaffna junction_( Yapane Handiya) its KM199 from that point to Jaffna. At Ranbewa it’s connected to the A9 road extending from Kandy to Jaffna. The road came to prominence during the war
Once reaching Vavuniya the gate way pictured below is the entrance to the North the predominantly Tamil area.