Overview

• With summer holidays ending in Bavaria and Baden‑Württemberg, ADAC forecasts a strong return wave from Friday, September 12, through Sunday, September 14.
• The heaviest congestion is expected on Friday afternoon, Saturday morning and Sunday afternoon as northbound flows build.
• Key hotspots include the A3, A5, A6, A7, A8, A9 and A93, plus Munich’s A99 ring and routes toward Alpine and cross-border corridors such as Brenner, Karawanken and Gotthard.
• More than 1,200 motorway construction sites are cited as major bottlenecks, and reinforced border checks may lengthen waits at crossings.
• Local ‘Durchfahrtsverbote’ from Friday to Sunday near the A8 (Munich–Salzburg) and A93 (Rosenheim–Kufstein) restrict diversion onto parallel roads, and ADAC advises traveling early or late, using live traffic apps and avoiding exits during jams.