Major traffic disruptions paralyzed the A1 West and A12 motorways on Friday, causing significant chaos across the cantons of Bern and Freiburg. The incidents involved multiple accidents with injuries, leading to the total closure of the A12 heading toward Flamatt for several hours.
Mass Pile-up on the A12
A severe mass pile-up occurred on the A12 between Thörishaus and Niederwangen. Initial findings indicate that more than half a dozen vehicles were involved in the collision.

The scale of the accident necessitated a large-scale emergency response. Multiple fire departments, ambulances, and other emergency personnel were deployed to the scene.
Weather Conditions and Road Impact
Several vehicles sustained heavy damage and came to a stop across the wet roadway. A massive traffic jam formed in the vicinity of the crash site.
During the time of the accidents, a powerful thunderstorm front with intense precipitation moved through the region west of Bern. Official warnings for freezing rain had also been issued due to hazardous driving conditions.
Recovery and Investigation
Both the A1 West and the A12 were reopened to traffic around 21:30. While the weather conditions were severe, it has not yet been officially confirmed if they contributed to the accidents.

Authorities may continue to investigate the exact sequence of events. Further analysis of the road conditions and weather data will be conducted to determine the cause of the pile-up.
Frequently Asked Questions
Which motorways were affected by the accidents?
The A1 West and the A12 were both affected, with the A12 direction Flamatt being completely closed for several hours.
What weather warnings were in place during the incidents?
There were official warnings for freezing rain in the region due to tough driving conditions, coinciding with a strong thunderstorm front and intense precipitation west of Bern.
When was traffic restored on the affected routes?
Both the A1 West and the A12 were open again by approximately 21:30.
How do you adjust your driving habits when official warnings for freezing rain are issued?
