Record-breaking Traffic Congestion: Volkswagen Group's ADAC reports 203.830 kilometers of traffic delays during summer vacation.
The summer holidays of 2025 saw a significant increase in traffic jams on German motorways, with the A99 bypass around Munich emerging as the most congested motorway.
According to the data, the A99 experienced a congestion rate of 3,024 traffic jams per 100 kilometers during the three worst weekends of the holiday period. This was the highest congestion rate among all motorways in Germany.
The most unfavorable travel weekend of 2025 was August 1-3, with a total of 4,201 traffic jams, a total length of 9,498 kilometers, and a duration of 4,721 hours. Saturdays were the most congested days of the weekend, contrary to the common belief that Fridays are the most congested days within weekends.
On average, there were almost twice as many traffic jams on Fridays compared to Saturdays and Sundays. However, the worst traffic jam weekend in early August had more traffic jams on Saturdays compared to Fridays and Sundays.
The total time loss of all traffic jams during the summer holidays of 2025 was 119,233 hours, which is 7.6 percent more than the previous year. The total length of recorded traffic jams on German motorways during the summer holidays decreased by around 1,500 kilometers compared to the previous year.
The A8, another motorway in southern Germany, ranked second with a congestion rate of 1,473 traffic jams per 100 kilometers. The A3 followed in third place with a congestion rate of 1,245 traffic jams per 100 kilometers.
The longest individual traffic jam of 2025 occurred on the A24 from Schwerin to the Berliner Ring, lasting around ten hours and reaching a maximum length of 35 kilometers.
However, the data does not provide information about the causes of the traffic jams, the types of vehicles involved, or the number of vehicles affected by the traffic jams. Furthermore, the provided paragraph does not contain any information about the location or duration of the summer holidays.
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