Optimized circulation management method of a train and associated CBTC signaling system

A method for managing movement of a train along a section of a railroad track, the method being implemented by a signaling system of the CBTC type that is able, in a nominal mode, to define a route on the section allowing the movement of the train in a nominal circulation direction, the route extending over a plurality of successive zones between an origin signal and a destination signal, wherein the method comprises, when there is an event preventing the train from continuing its movement along the route, causing the train to circulate in a circulation direction opposite the nominal circulation direction by:

• selecting an origin zone and an output signal;
• tracing, via a supervision system of the signaling system, a pseudo-route for the train, the pseudo-route extending over a plurality of successive zones between the origin zone and the output signal;
• opening, via an interlocking system of the signaling system, the pseudo-route by associating each zone of the pseudo-route between the origin zone and the output signal with a sub-route, each sub-route corresponding to the reservation of the associated zone for the train in the opposite circulation direction;
• informing the train to modify a current circulation direction thereof so that the current circulation corresponds to the opposite circulation direction;
• determining, via a zone controller of the signaling system, a movement authorization for the train taking into account the current circulation direction of the train, the sub-routes open for the train, and a list of obstacles regularly updated by the zone controller;
• and
• sending the movement authorization to the train to control the movement of the train,
• wherein determining and sending a movement authorization is repeated until the train crosses the output signal.