The news broke at around 7:30 a.m., according to RER B's X account: a serious personal accident had occurred at La Courneuve-Aubervilliers station, in the Seine-Saint-Denis département, bringingtraffic between Le Bourget and La Plaine-Stade de France to a standstill in both directions.
Initially scheduled for 9.15am and then 10am, the line is not due to resume until 11.30am this morning, resulting in numerous service changes, delays and other cancellations throughout the morning.
In the event of a serious accident involving a passenger, the driver triggers an alert so that all trains in the affected area stop: all drivers and passengers must then wait for instructions from the dispatching teams. The police (including a criminal investigation officer) and fire department are then called in: these authorities will decide whether traffic can be resumed. In the case of this morning's accident, no further details have been released.
For passengers travelling on the RER B toRoissy Charles de Gaulle airport, RATP specifies that they can use the Roissy Bus at no extra cost on their original transport ticket.
