Abstract: A computing system includes a computing device and an input data path connecting an interface device to the computing device. The input data path has at least two data relays and at least one buffer memory temporarily storing data. Each of the data relays has first and second terminals and a central terminal and selectively interconnects the first and central terminals or the second and central terminals and leaves the first and second terminals constantly separated from each other. The first terminal of a first relay is connected to the interface device, and the second terminal is connected to the computing device. The central terminal of the first data relay is connected to the buffer memory. The intermediate buffer memory is selectively connected by the first data relay solely to the interface device or the second terminal of the first data relay, but not to both simultaneously.

Abstract: A control system dictates operational settings of a rail vehicle system based a transitory second speed limit that is no faster than a current first speed limit and which is issued for a determined segment of the track for a determined time period. The control system obtains a current time, determines whether the transitory second speed limit has started, is in effect, or has expired based on the current time relative to the determined time period, and, in response to such determination, performs one or more of (a) generate a prompt to indicate that the determined time period has expired, (b) operate the rail vehicle system at the first speed limit, and/or (c) modify the operational settings of the rail vehicle system to exceed the second speed limit in the determined segment but not exceed the first speed limit for the determined segment.