5 car IETs▸ (Intercity Express Train) should do.
Build some more 10 car (not 5+5) IETs, mechanically similar to and interchangeable with the present fleet but with a proper inter-city internal fit out.
Use these new inter-city IETs on the longer distance and more important GWR▸ (Great Western Railway) services, and transfer some of the existing 5 car units to Cardiff-Portsmouth.
My well known objections to IETs are not primarily on engineering or technical grounds, but are due to the downgraded passenger experience on routes previously operated by proper inter-city trains.
I have little objection to additional full length IETs being built with proper inter-city internal arrangements, and cascading the shorter and lower specification units to secondary routes.
New IETs should be more affordable than the first lot.
Maintenance should be simplified if the new units are mechanically like the existing fleet, differing only in internal fittings, equipment and layout.
One type of train from the driving P.O.V. simplifying training and rostering.
Already approved by the various regulatory agencies, unlike a new design.
Build some more 10 car (not 5+5) IETs, mechanically similar to and interchangeable with the present fleet but with a proper inter-city internal fit out.
Use these new inter-city IETs on the longer distance and more important GWR▸ (Great Western Railway) services, and transfer some of the existing 5 car units to Cardiff-Portsmouth.
My well known objections to IETs are not primarily on engineering or technical grounds, but are due to the downgraded passenger experience on routes previously operated by proper inter-city trains.
I have little objection to additional full length IETs being built with proper inter-city internal arrangements, and cascading the shorter and lower specification units to secondary routes.
New IETs should be more affordable than the first lot.
Maintenance should be simplified if the new units are mechanically like the existing fleet, differing only in internal fittings, equipment and layout.
One type of train from the driving P.O.V. simplifying training and rostering.
Already approved by the various regulatory agencies, unlike a new design.
And how will they be cheaper?
What you gonna say to Bristol/Cheltenham/Cotswolds people who need shorter trains to provide service change?
Who is going to pay for the “intercity internal arrangements” and will it provide seating capacity improvements?