Vital method for exiting and re-entering a mapped guideway territory
A system and method for controlling a train in a manner that accommodates transitions from and to railway-controlled territory at designated locations, as well as operating within the proximity of those locations in a vital manner.
1. A method for controlling, from an onboard control system, a train that transitions between a railway-controlled territory and an off territory, wherein the method comprises:
determining, by the onboard control system, that the train is about to exit the railway-controlled territory, wherein the onboard control system comprises a track map of the railway-controlled territory and lacks an off-territory track map;
when the train exits the railway-controlled territory, establishing, by the onboard control system, an industry-spur-operating mode of operation for the train; and
operating in the industry-spur-operating mode for a specified distance beyond a point of exit from the railway-controlled territory, wherein the industry-spur-operating mode comprises:
determining, by the onboard control system, an operating speed; and
enforcing, by the onboard control system, an off-territory speed limit.
2. The method of claim 1 wherein the industry-spur-operating mode further comprises:
detecting, by the onboard control system, an impending return of the train to the railway-controlled territory at a distance that is greater than an estimated braking distance of the train.
3. The method of claim 1 wherein the industry-spur-operating mode further comprises:
ceasing, by the onboard control system, the operating in the industry-spur-operating mode when the train exceeds the specified distance beyond the point of exit.
4. The method of claim 1 wherein the specified distance is configurable in the onboard control system.
5. A method for controlling, from an onboard control system, a train that transitions between a railway-controlled territory and an off territory, wherein the method comprises:
determining, by the onboard control system, that the train is about to exit the railway-controlled territory, wherein the onboard control system comprises a track map of the railway-controlled territory and lacks an off-territory track map;
when the train exits the railway-controlled territory, establishing, by the onboard control system, an industry-spur-operating mode of operation for the train; and
operating in the industry-spur-operating mode for a specified distance beyond a point of exit from the railway-controlled territory, wherein the industry-spur-operating mode comprises:
detecting, by the onboard control system, an impending return of the train to the railway-controlled territory at a distance that is greater than an estimated braking distance of the train.
6. The method of claim 5 wherein the industry-spur-operating mode further comprises:
ceasing, by the onboard control system, the operating in the industry-spur-operating mode when the train exceeds the specified distance beyond the point of exit.
7. The method of claim 5 wherein the specified distance is configurable in the onboard control system.
8. A method for controlling, from an onboard control system, a train that transitions between a railway-controlled territory and an off territory, wherein the method comprises:
determining, by the onboard control system, that the train is about to exit the railway-controlled territory, wherein the onboard control system comprises a track map of the railway-controlled territory and lacks an off-territory track map;
when the train exits the railway-controlled territory, establishing, by the onboard control system, an industry-spur-operating mode of operation for the train; and
operating in the industry-spur-operating mode for a specified distance beyond a point of exit from the railway-controlled territory, wherein the industry-spur-operating mode comprises:
ceasing, by the onboard control system, the operating in the industry-spur-operating mode when the train exceeds the specified distance beyond the point of exit.
9. The method of claim 8 wherein the specified distance is configurable in the onboard control system.