What is the name of the federal controlled-access highway system in Germany that is part of the Cologne Beltway?
Cologne Beltway The Cologne Beltway (German:"Kölner Autobahnring") is the collective term for the Autobahns encircling Cologne. It consists of the Bundesautobahn 1, the Bundesautobahn 3 and the Bundesautobahn 4. The beltway handles one of the highest traffic volumes in Germany.
Bundesautobahn 391 Bundesautobahn 391 (translates from German as "Federal Motorway 391", short form Autobahn 391, abbreviated as BAB 391 or A 391) is an autobahn in Braunschweig, also known as the "Braunschweiger Westtangente". Its purpose is to connect the A 2 with the A 39, passing the city of Braunschweig on the western side.