On 25 November I used an Oxford to London Terminals off-peak day return, restriction P7, £16.35 with a senior railcard, to travel via Slough to Paddington, and return via Marylebone, High Wycombe and Oxford Parkway. To my disappointment, my ticket worked the gate barriers at both Marylebone and Oxford Parkway. I had been looking forward to an interesting discussion.
I booked my ticket starting at National Rail Enquiries, specifying travel via Oxford Parkway in both directions. (As posters here will know, you can't specify a different "via" out and back.) I refused the default option of buying from Great Western, and chose Virgin. Virgin issued me the ticket, with an itinerary via Oxford Parkway in both directions. I requested, and received, a "seat reservation" on the 20:37 from Marylebone. This "reservation" shows no actual allocated seat. Armed with my itinerary, and this "reservation", I was expecting gate staff at Marylebone to cave in. But, as already said, my ticket in fact opened the gates at Marylebone and Oxford Parkway, and I had no discussion.
In pursuit of my enquiries, I tested whether a ticket machine at Marylebone would sell me a ticket to Oxford. It would not, claiming that it could find no fares.
I've now done further tests, and find that to be false (and a violation of the rules about impartial retail sales). If you enter Marylebone to Oxford via Oxford Parkway at NRE, it will offer you lots of trains and fares, including the Off-Peak Day Return "any permitted" at £24.80 (without railcard).
It appears to me that NRE, and whoever programs the barriers at Marylebone and Oxford Parkway, have either not yet implemented, or have correctly decided not to implement, the crazy "negative easemement" 700598, discussed in the National Routing Guide update thread:
http://www.railforums.co.uk/showpost.php?p=2340244&postcount=364
In my opinion, this "negative easement" (translation: purported embuggerance), as well as being daft, is ineffectual. Chiltern Railways are
now offering a direct train service from Marylebone to Oxford. For the time being, part of this direct train service is replaced by buses between Oxford Parkway and Oxford, because of over-running engineering work. (Over-running by about 2 years, given that Network Rail is taking much longer to re-instate double track, and install some swanky signalling, on the Bicester to Oxford stretch than it took the Victorians to build the
whole line from Bletchley to Rewley Road,
from scratch. With only wheelbarrows.) If you doubt that analysis, ponder the fact that an "any permitted" ticket from (for example) Birmingham to London Terminals is valid via Banbury and High Wycombe,
including during periods when there are replacement buses between (say) Solihull and Moor Street.
If I'm wrong about that, then I would, in theory, have been liable to pay an excess fare to enable me to travel via High Wycombe. However, the only relevant fare whose existence Chiltern admits is the Off-Peak return London Terminals - Oxford Parkway, route High Wycombe, £16.30 with a railcard. So the excess is zero. (Fudging the point that I travelled out via Slough, of course.)
In short, purported embuggerance 700598 isn't actually working, and can't work.
What, of course, Chiltern
should be doing
during the bustitution is (a) getting Oxford - High Wycombe - Marylebone mapped as a permitted route; (b) accepting that
during the bustitution they can only expect a small part of the revenue from Oxford - London Terminals "any permitted" tickets (just as, I assume, South Eastern only get tuppence a quarter for fanatics who go Oxford - Ascot - Waterloo East - London Bridge); (c) offering keenly-priced tickets Oxford - London, route High Wycombe, to tempt residents of north Oxford away from their current preference of driving to Thornhill and getting a cheap bus to London. Incidentally, the two competing bus companies do not offer a flexible return ticket "Out to Shepherds Bush (for example) and back from Marylebone". However, this does not matter to frequent users, because both companies offer very cheap carnets of single tickets.
If you're still with me, have you any advice on the way to get some sense into Chiltern management? Formal complaint? Polite suggestion?