T must not depart Z until X mins after Y has has been formed.
This rule forces train "T" to wait for a period of time at any timetable location Z relative to the time of train "Y" comes into being.
'Being formed' means a train created by a 'Next' working instruction.
The formation must be effected at the same location as the train T is being held.
The reference to Y must be to the train being formed but T need not be involved in the formation itself.
| For example: 1A00 can be held at the station until 5A01 arrives and froms 1A01 |
Last edited by GeoffM on 15/09/2016 at 03:01