In message , at 14:18:01 on
Tue, 6 Jun 2006, asdf remarked:
NCoC:

"'Break your journey' means leaving a Train Company's or Rail Service
Company's premises after you start your journey other than to:

-Join a train at another station, or

-Stay in overnight accommodation when you cannot reasonably complete
your journey within one day, or

-comply with directions of Train Company's staff."

I think it's quite clear that starting at Cambridge on an Ely-London
ticket doesn't fit the definition of a BoJ.

But abandoning the journey does appear to fit that definition.

Although leaving the premises at the end of your journey isn't mentioned
either, and that's not a BoJ
--
Roland Perry