The A12 highway is a highway in Lithuania. It forms part of the road connecting Riga and Kaliningrad Road passes through Joniškis, Šiauliai and Tauragė. The length of the road is 186.09 km. The speed limit for most of the road length is 90 km/h. There is short 10 km dual-carriageway section south of Šiauliai. Wikipedia