Bundesautobahn 143 (translates from German as Federal Motorway 143, short form Autobahn 143, abbreviated as BAB 143 or A 143) is an autobahn in Saxony-Anhalt, Germany. The A 143 comprises the western leg of the Mitteldeutsche Schleife (Central German Loop), a beltway around the cities of Halle an der Saale and Leipzig. 9 km of the planned 22 km route have been completed, due to the autobahn's path potentially disturbing an environmentally sensitive area. From Wikipedia