Patent ID: 8370006

Claim:
A system comprising: a sensor configured to obtain speed information representative of actual speeds that a first railway vehicle is traveling along a railway; and a first processor configured to be disposed onboard the first railway vehicle and communicatively coupled with the sensor for receiving the speed information as the first railway vehicle is traveling along the railway, the processor being further configured to obtain a trip plan including designated speeds that the first railway vehicle is to travel along the railway for a trip, the designated speeds of the first railway vehicle expressed as a function of at least one of distance or time along the trip to reduce at least one of emissions generated or fuel consumed by the first railway vehicle during the trip relative to traveling according to one or more other speeds during the trip, wherein the first processor is configured to receive the speed information during the trip and determine differences between the actual speeds of the first railway vehicle and the designated speeds of the trip plan, and wherein the first processor is further configured to modify one or more of the designated speeds of the trip plan based on the differences between the actual speeds and the designated speeds as the first railway vehicle travels along the railway.