Systems and methods for preserving route instruction information

A system comprising:

• one or more processors configured to be disposed onboard a vehicle and to:
• receive, while in an active state of the vehicle in which the system receives instructions from an off-board source, enforcement targets from the off-board source, the enforcement targets associated with corresponding portions of a route to be traversed by the vehicle, the enforcement targets having corresponding associated enforcement activities to be performed based on location of the vehicle relative to the corresponding portions of the route;
• and
• store at least some of the received enforcement targets onboard the vehicle as preserved targets having corresponding preserved enforcement activities responsive to a transition from the active state to a degraded state of the vehicle in which two or more enforcement targets are no longer received;
• wherein the preserved enforcement activities comprise continuing performance of a current enforcement target of the received enforcement target that was being performed as the vehicle transitioned from the active state to the degraded state,
• wherein the one or more processors are configured to provide a prompt to the off-board source responsive to the transition from the active state to the degraded state, and
• wherein the preserved targets are stored on a memory responsive to the transition from the active state to the degraded state.

A method comprising:

• receiving, while in an active state of a vehicle in which the vehicle receives instructions from an off-board source, enforcement targets from the off-board source, the enforcement targets associated with corresponding portions of a route to be traversed by the vehicle, the enforcement targets having corresponding associated enforcement activities to be performed based on location of the vehicle relative to the corresponding portions of the route;
• responsive to a transition from the active state to a degraded state of the vehicle, storing at least some of the received enforcement targets onboard the vehicle as preserved targets having corresponding preserved enforcement activities wherein the degraded state of the vehicle comprises a state in which two or more enforcement targets are no longer received;
• and
• performing the preserved enforcement activities associated with the preserved targets.