Abstract: 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.

Abstract: A code bit level redundancy method for a computer interlocking system is provided. The method includes: (1) controlling the output in parallel, and (2) sharing the collected information.

Abstract: A motor control apparatus for a reversible motor of a railway switch machine includes a conditional power source having an output voltage. A motor control circuit includes inputs for inputting the voltage from the power source, inputs for inputting a normal signal and a reverse signal, two output terminals for electrical connection to two input terminals of the reversible motor, and a relay logic circuit including a pair of double pole, double throw relays. The contacts of these relays: (a) output the voltage to the two output terminals in response to the normal signal, (b) output an inverted polarity of the voltage to the two output terminals in response to the reverse signal, and (c) short the two output terminals in response to absence of both of the normal and reverse signals.