|Length:||21 km (13 mi)|
The A 100 encloses the city centre of the German capital Berlin, running from the Wedding district of the Berlin-Mitte borough in a southwestern bow through Charlottenburg-Wilmersdorf and Tempelhof-Schöneberg to Neukölln. It is connected with the Bundesautobahn 111 (A 111) at the Charlottenburg interchange, with the A 115 (the former AVUS) at the Funkturm junction, and finally reaches the A 113 at its southeastern terminus in Neukölln, all linking it with the outer Berliner Ring A 10. The route in most parts runs parallel to tracks of the inner circle line (Ringbahn) of the Berlin S-Bahn.
The first section at western Kurfürstendamm was opened in 1958. According to the concept of a "car-friendly" city, the A 100 then indeed was intended to become a ring road, but by now a completion of the ring as an autobahn is no longer proposed. It is nonetheless still often called Stadtring ("city ring"). The section between the Funkturm and Kurfürstendamm interchanges is busiest autobahn in Germany with an average of 191, 400 vehicles per day. Recently a planned southeastern extension to Sonnenallee and Treptower Park has been the cause for various protests.
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