Explanation of Performance Measures
| Train Counts | ||
|---|---|---|
| Short Title | Title | Explanation |
| Timetabled | Originally Timetabled | Number of trains appearing in the biannual timetables normally published in May and December |
| Additional | Additional Services | Number of trains that were added to the schedules after the biannual timetables were published |
| Suspended | Suspended in Advance | Number of trains that were cancelled in advance of the day |
| Expected | Expected on Day | Number of trains that were expected to run taking into account suspended trains but not on the day cancellations |
| Arrived | Arrived on Day | Number of trains that did actually run and arrive at Silverdale |
| Cancelled | Cancelled on Day | Number of trains that were cancelled on the day |
| Performance Impacts | ||
|---|---|---|
| Short Title | Title | Explanation |
| Avg Delay | Average Delay | The average minutes late running trains were on departure. What the train companies often report. |
| Max Delay | Max Delay | The maximum latest minutes late a running train was on departure. |
| Avg Wait | Average Wait | The average wait in minutes from when a train was expected to depart to when a train actually departed in the same direction. After the last running train of a day has departed waits are limited to a maximum of 2 hours. Expected trains reflect pre-planned changes from the biannual timetables and so do not include suspended train services. A good measure of the impact of delays and cancellations on the service announced on the day. |
| Max Wait | Max Wait | The maximum wait in minutes from when a train was expected to depart to when a train actually departed in the same direction. After the last running train of a day has departed waits are limited to a maximum of 2 hours. Expected trains reflect pre-planned changes from the biannual timetables and so do not include suspended train services. |
| Avg TT Wait | Average Timetable Wait | The average wait in minutes from when the biannual timetables say a train should have departed to when a train actually departed in the same direction. After the last running train of a day has departed waits are limited to a maximum of 2 hours. A good measure of performance versus the biannual timetable. |
| Max TT Wait | Max Timetable Wait | The maximum wait in minutes from when the biannual timetables say a train should have departed to when a train actually departed in the same direction. After the last running train of the day has departed waits are limited to a maximum of 2 hours. |
| Performance Summaries | ||
|---|---|---|
| Item | Explanation | |
| Upper Pie Chart | The number of trains that ran as a percentage of the number that the biannual timetables specified. | |
| Lower Pie Chart | The average wait in minutes from when the biannual timetables say a train should have departed to when a train actually departed in the same direction. After the last running train of a day has departed waits are limited to a maximum of 2 hours. A good measure of performance versus the biannual timetable. | |
Services with no actual report are, generously, treated as having arrived on time when evaluating waits following previously cancelled services but are not themselves included in the delay or wait calculations.
Since 1 April 2026, replacement bus services have been included when in the schedules and treated as a train (but displayed as a bus in detail views). However a replacement bus service is not matched with a train in the timetables, or vice versa.
Derived from data provided by the brilliant RealTime Trains.
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