The heavy traffic today, September 13, 2025, is largely due to the peak return wave from the summer holidays in regions like Bavaria and Baden-Württemberg in Germany. This period typically sees increased traffic congestion on major motorways such as A3, A5, A6, A7, A8, A9, A93, and A99 due to many travelers returning home after vacations. This wave creates significant traffic jams and congestion especially on peak days like today and tomorrow.