Delay Time

The amount of time that the arrival must lose to cross the meter fix at the assigned meter fix time. This is the difference between Actual Calculated Landing Time (ACLT) and Vertex Time of Arrival (VTA). (FAA4)

As applied to an automatic train stop or train control system, the time which elapses after the onboard apparatus detects a more restrictive indication until the brakes start to apply. (49CFR236)