We all know that break of journey is generally permitted, as is short stopping. On a route A-B-C-D-E I can therefore travel A-B, and then D-E on one ticket (within the validity of course).
But what happens if a ticket allows for different routes? For example, Cambridge-London: can I travel Cambridge-Royston, and then Harlow Town-London Liverpool Street? If so, would there be a point where it'd not be valid? Surely, if I travel Cambridge-Finsbury Park, then I wouldn't be allowed to then travel Shelford-Liverpool Street. Or would I?
But what happens if a ticket allows for different routes? For example, Cambridge-London: can I travel Cambridge-Royston, and then Harlow Town-London Liverpool Street? If so, would there be a point where it'd not be valid? Surely, if I travel Cambridge-Finsbury Park, then I wouldn't be allowed to then travel Shelford-Liverpool Street. Or would I?