1. Electrification of all major routes, we can argue about where the 'cut' would be made, but I am not advocating electrifying lines such as Heart of Wales or Far North, but anything that carries regular inter regional services, intensive local services, and existing half finished projects such as GWR lines and MML should be included.
2. An improvement to passenger environments, think Mk3 comfort in modern stock. An end to 3+2 seating. On short distance Metro services longitudinal seating like class 378 is probably a better fit, everything else is 2+2. All First Class to be 1 + 2, and seats designed for comfort rather than the thinest/cheapest. Adequate luggage space on all inter regional, inter city and airport services.
3. All future passenger stock must be able to operate together, and will belong to common pool with a standard driver interface and controls, we really have gone backwards in this area, there would be 125mph EMUs (limited to 100mph on 3rd rail) for inter city routes, 100mph/90mph dual voltage EMUs for local services and 100mph/90mph DMUs for the lines that dont make the criteria for improvement 1. Three types of traction knowledge for passenger stock. And the 125mph and 100/90 stock would be capable of operating together, at the lower of the two speeds. It can be built by different manufactures, as long it conforms to common standards set and enforced, which also extends to standard components for all wearing items. Interiors may vary, Metro style longitudinal, Doors at 1/3rds, and end vestibules with doors at ends depending on usage, but everything can work with everything, and can therefore be moved around as requirements change. There would also be a defined percentage spare, probably of Doors at 1/3rds units as these could could cover any requirement so that short term strengthening could take place to cover large events etc. An end to the current situation where there are countless different types in use, all of which require different maintenance, traction knowledge etc. and cannot be quickly redeployed
Although upfront cost would be high once objective 1 & 3 have been acheived day to day running costs would probably be lower and going forwards we would have a better railway