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.
Wiehltal bridge The Wiehltal Bridge is a highway bridge on the A 4 motorway between Cologne and Olpe over the Wiehltal valley at Engelskirchen (Oberbergischer Kreis), North Rhine-Westphalia, Germany.