Traffic signs despite the closed airport: Why do the signs still warn on the A 111 before flight operations?

Traffic signs despite the closed airport: Why do the signs still warn on the A 111 before flight operations?
Article content:
The Tegel Airport was closed in 2020 and developed in 2021. Nevertheless, there are still traffic signs on Autobahn A 111, near Kurt-Schumacher Platz, that warn of flight operations. Traffic sign No. 101-10 (plane in the red triangle) points to drivers in several places, although no planes have not crossed the highway for three years.
These warning signs are no longer an official importance because Tegel Airport was closed. Autobahn GmbH of the federal government, which is responsible for the motorways in Berlin, has admitted that they noticed these signs as part of their traffic show. Those responsible asked the Senate Department whether there was a reason for the warning, and the answer was that the signs for the State of Berlin are no longer meaningful and Autobahn GmbH is responsible for dismantling them.
The question arises whether an authority has missed the start here or whether it is a loving memory of Tegel Airport. The fact is, however, that the warning signs are misleading and no longer relevant.
Topics: Airbus, motorway, Boeing, Tegel, Road Traffic Airport, Tegeler See