No matter what fancy tricks you play on computer technology if the capacity isn’t there it’s not there!Although the initial outlay for building in extra capacity is expensive once it’s built it’s there to use for hundreds of years-at little extra cost!The Werrington junction fly under being an example!The best thing for capacity for intermodal from Southampton would be reopen the Stockbridge line direct from Winchester to Didcot for freight only-avoiding the bottleneck at Basingstoke&Reading.

Still, if by most sophisticated “predictive” maintenance, corresponding on track machineries currently call for too costly obstructions, stops, etc. This is not sustainable, now when the “old railway” has to meet a steady flow of new, tough, competition – and clients demanding “On Time” supplies.
(Neither, Problem, voids and corresponding undampened “hung sleepers”, causing resonances at “pin pin” frequency…, etc. no longer shall plague, with high noise, etc…)