Historically an uninterrupted Autobahn, one final  section was added between Sembach and Kaiserslautern at the current site of the Dreieck Kaiserslautern/KL-Zentrum Ausfahrt.
The Autobahn, historically unbroken, included an additional section from Sembach to Kaiserslautern, situated at the current Dreieck Kaiserslautern/KL-Zentrum Ausfahrt.