A control setting on a dispatcher's console that allows an absolute signal to automatically display a proceed aspect for following trains once the block ahead clears. This eliminates the need for the dispatcher to manually line the route and clear the signal for every single train in a convoy.
I've got the fleeting turned on for the eastbound main to flush out this backlog of coal drags.
Related terms
Centralized traffic control
A signal system that allows a single dispatcher to line switches and signals across hundreds of miles of track.
Block signal
A fixed trackside light or semaphore that tells an engineer whether the track segment ahead is clear.
Aspect
The visual appearance of a trackside signal as seen by an approaching locomotive crew.