A relatively simple way to make the London to Plymouth 'effective journey time' 15 mintues faster would be to operate the express services every 30 minutes rather than every hour. The 2 hourly Paddington to Exeter/Paignton service could also b replaced by an hourly Reading to Taunton non-intetcity service.
GWR having a decent sized fleet of 5-Car intercity sets means that the length of these services could be optimised against demand during the day/week.
I think the only items needed for GWR to provide such a service would be:
- Some extra non-intetcity stock (to free up intercity stock which is p
- resently being used on non-intercity services)
- Some more drivers, for which their salary should not be too significant relative to the ticket revenue of the passengers on board.
- 2tph of via Taunton paths between Paddington and Reading rather than the present setup of 1tph some hours and 2tph others.