Why a Train’s Fifteenth Late Minute Matters
A train can arrive behind schedule without every small variation becoming a formal delay under a rule that sets a 15-minute threshold. The clock keeps running either way; the threshold changes how the lateness is classified. At 14 minutes, the train has slipped, but it has not crossed the line used for an officially counted delay. At 15, it has.
That bright line makes a timetable easier to apply. Instead of arguing over whether a few minutes of drift count as a reportable event, people can compare the scheduled arrival with the actual one and apply the same cutoff. The rule turns a continuous difference—every minute late—into a clear yes-or-no category.
A Classification, Not a Change in the Journey
Crossing the threshold does not make the train suddenly later, nor does it explain why it fell behind. It gives the lateness a formal status. That distinction matters when delays are recorded or assessed under rules that rely on a defined cutoff: the same timetable slip can be ordinary variation before the line and an officially counted delay once it reaches it.
The practical consequence is that one minute can change the paperwork even though it barely changes the passenger’s experience. A train arriving at 14 minutes late and one arriving at 15 may feel almost identical on the platform; under the threshold, only the latter qualifies. The cutoff is therefore a tool for consistent classification, not a claim that 15 minutes is when lateness begins.
