The incident occurred Friday morning in the Porte Dauphine area, where there was a very long traffic problem. Just before 7 am, 3 vehicles and a piston climbed together. The accident occurred between Porte Dauphine and Porte de la Muette. Following the accident, there was heavy traffic in both areas. Vehicles were on the road for some kilometers away. Over two and a half hours, the vehicles stopped.
Porte Maillot areas also experienced heavy traffic. Many said that they took over an hour more than a regular trip. A total of 261 kms of traffic was reported as a result of the accident