A method is provided. The method includes, the railway network being subdivided into resources, the state being driven by a ground controller, and each vehicle including an onboard controller being capable of communicating with the ground controller. The method includes planning, by a regulating unit, of a vehicle's mission, transmitting said mission to the vehicle. The onboard controller of identifying a group of resources permitting the vehicle to continue its mission, reserving the identified resources with the ground controllers, once all of the resources are allocated, interlocking each resource in a required state, verifying that each resource is reserved and is in the required state and, when this verification is positive, extending permission for the vehicle to move on the path corresponding to said group of resources.