I just restricted myself to providing the figures. I assumed grahame had a good reason for asking which I am sure he will reveal in due course
"Low-level" type question - looking to help fill (me) in on the relative costs of re-openings in the
UK▸ and elsewhere. It does seem / sound like the Swedish case (in cost per km) was relatively cheap compared to the active schemes in the UK at the moment to bring passenger trains back to lines without any regular passenger trains.
I have learned that there is no special / easy-cheap way that the Swedes are doing it - rather a line than was already virtually up to it. Ah well - it was worth looking. Looking for a UK comparison - nothing comes straight to my mind as a long line in fine, modern fettle, though there are some short sections around.
Around my home area, Westbury North to East curve comes to mind, where a service was tried out a few years ago under "experimental" regulations. Just one train (initially each way?) per day, it was rather quiet when I caught it and (I believe) it was withdrawn to stop it being reclassified as permanent and requiring a formal closure process if it has stayed but then been withdrawn later. The alternative (now-ish) running reverses at Westbury rather than taking the curve.
Aside - I am not suggesting that the Westbury experiment was a failure as such; the trains in question provided (and now modified, provide) a Bradford-on-Avon and Trowbridge to Paddington direct round trip for London meetings (far too slow to use on a daily basis) as part of what was running anyway - getting a service that started its day and ended it otherwise at Pewsey to / from the depot. I was considering for today a trip out from Melksham to either Pewsey of Bedwyn and cycling back, but journey times of 100 minutes to Pewsey on
all morning services, and up to 180 minutes to Bedwyn put me off. Doesn't have to be an obviously-silly journey (Whitby to Scarborough, or Blaenau Ffestiniog to Harlech) to take a silly-long time.