Põhimaantee 3 is a 220-kilometre-long north-south national main road in Estonia. The route follows the same path as the European route E264. The highway starts in Jõhvi. From there the main cities passed are Ahtme and Tartu. The highway ends in Valga on the intersection with the T6.

Tallinn-Tartu-Võru-Luhamaa maantee is a 282-kilometre-long north-southeast national main road in Estonia. The route follows the same path as European route E263. The road forms a major north-south corridor within Estonia, connecting the two largest cities. The highway starts in Tallinn and passes a number of notable towns, namely Kose, Põltsamaa, Tartu and Võru, with arterials branching off towards Paide, Valga, Põlva. The highway ends in Luhamaa intersecting with the T7, heading to either Latvia or Russia.