Different descriptions of Advance ticket validity between TOCs

[TUC]

I have a split ticket for which one leg is valid on a TPE service and the other a Cross Country service. The TPE one states ‘Valid on specified TPE trains only’ whilst the Cross Country one states ‘Reserved Cross Country trains only’.

I understand Advance tickets and have no worries about their validity for my journey, but I am intrigued by the different lines used. Are they just describing the same thing in different ways (in which case why not have standard lines?) or something different?

 

[Watershed]

They're describing the same thing in different ways generally. The main difference is between "TOC [X] only", "TOC [X] & [Y] only" and "TOC [X] & Connections" kinds of Advances.

Advances historically weren't all developed at that same time. It was only the fares "simplification" exercise of 2007 that resulted in similar ticket types all being grouped together under the same name and a common set of terms & conditions.

Of course there has been little coordination across the industry so this kind of fragmentation is exactly what you would expect. The lack of coordination has often been justified on the grounds that it would be "anticompetitive" and thus illegal to do so, but this doesn't seem to have been an obstacle to the various fares "simplification" exercises that have been undertaken over the years.

 

[Crithylum]

On trains between London and Cambridge they will either be “AP GN & TL” or “Valid on Reserved GA trains and connecting services”. Interestingly I once had a ticket with the latter where every GA train was non-reservable and the reserved train was part of a journey to U zones 1-3