The sooner a proper facility for maintenance of 197s is opened in the south the better. Passengers are constantly being inconvenienced with swaps at Chester and other stations because of all the failed and defective units having to be sent up there. It was always going to cause a problem trying to have 70 units based in a depot that was only used to 27.
It does seem a stretch at Chester.
I realise Machynlleth will be able to do some (light) work once the 158s have gone.
I expect Canton will take on more work on 197s once the 150s have gone.
I can guess the 150s might be getting quite maintenance hungry now they are getting old.
Oh but the shiny new 197s seem a bit greedy on that one !.
After all the TAM lines will be serviced by Taffs Wells - how many 150s does that free up from Canton.
How much does Barry (depot ?) do ?.
That could be taking pressure of Canton once the 150s are gone and Flirts are fully deployed.