Yes, thanks for that. I was aware, when posting, that competition between rail and other modes of transport would be a reason for invoking the lawful exclusions from disclosure.
However, there is actually no end to the ability to include other modes, other (potentially) competitive businesses, other personal decisions, customs and practices, all within the legal argument to justify actual or potential "competition". (This could include the likes of petrol stations, airports, catering facilities, taxi and car hire facilities, cycle shops, bus shelters, highways developments - even entertainments!). There really is no end to the list!
I tried to confine my reply to competition within the rail industry.
But I hope you'd agree, notwithstanding your quite valid point, that the "competitive" argument for non-disclosure, may or not be reasonably justifiable within the confines of the rail network; but when there is no competition within the rail franchising (or its competition is highly constrained, as in Scotland), then we can find no reasonable & practical commercial justification for non-disclosure?
(When I qualify my question with "reasonable & practical" I'm assuming that if a coach operator was considering a competitive service, then they would have other, reliable and specific market research data at their disposal anyway. My point was that the shareholding investors in the 2 competing companies would NOT have that data. So the actual commercial choices would be badly informed).