cactustwirly
Established Member
The Freight trains a slotted in between the Elizabeth line. They have to skip stop to prevent the Freight being held upThe relief line is not currently timetabled for maximum throughput though, capacity is expended on non standardised stopping patterns.
If 4 more trains were going to the airport, rejigging of the timetable would release the capacity necessary to achieve it.
Which is how it will be possible to expend every train to Old Oak Common.
Freight Traffic joins the line at Acton which is after Old Oak Common