Ahhh ok tidy, still a way to go yet then.
I assume that even if they cleared 5 cars today there wouldn’t be much change as there are still lonely overcrowded 2 cars. So if there was a spare 2 car they’d send it as a 4 or if there was a spare 3 they’d send the 3 instead.
But I suppose If there’s a few more 3 cars to come that could make quite a difference to the state of things.
Probably not a massive difference, but even with the same number of units, the 5-car sign off will improve flexibility in planning and on the day.
At the moment, 4 cars means either 2,3 or 2+2. But this has a knock-on effect - any diagram that couples to travel to Manchester as to be 2-car. Or if you have a diagram finishing somewhere, that then forms a coupled Marches service next day, that has to be 2-car too.
Plus, if there's any disruption, there's little room to strengthen services to rebalance.
3-car on Swanline yesterday was mentioned above. We don't know why that choice was made, over the Marches service, but it seems likely that the root cause of this will be length restrictions.
A good example today is the 1312 arrival at Manchester from Swansea, which couples to the overnight stabler, forming the 1330 departure. All those diagrams have to be 2-car.