What is a Break of Journey and what isn't?

[northwichcat]

Say you have an Advance ticket for a journey which starts with an unreserved leg and then has a reserved leg and your interchange station is somewhere like Chester, Milton Keynes or Leeds, which has retail facilities which you need to go beyond the ticket barriers for.

If you had a 30 minute interchange time would leaving the station (beyond the station retail facilities) for 15 minutes during that time be permitted without being classed as a break in journey?

Then would it change if you took a train an hour earlier for the unreserved leg and gave yourself a 90 minute interchange time?

Assume in both instances you are making the whole journey shown and not starting or finishing short.

 

[fireftrm]

I do this often, it isn't a break in journey as you change at that station anyway

 

[yorkie]

http://www.nationalrail.co.uk/times_fares/46427.aspx

For the purposes of this Condition and Condition 11, you will be treated as breaking your journey if you leave a Train Company’s or Rail Service Company’s stations after you start your journey other than to:
(i) join a train at another station, or
(ii) stay in overnight accommodation when you cannot reasonably complete your journey within one day, or
(iii) follow any instructions given by a member of a Train Company’s or Rail Service Company’s staff.

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.... would leaving the station (beyond the station retail facilities) for 15 minutes during that time be permitted without being classed as a break in journey?....

If you leave the station premises then it is a break of journey.

So at King's Cross, using the Parcel Yard is not a break of journey, while at Leeds using the Wetherspoon is not a break of journey. But crossing the road and using a cheaper pub is technically a break of journey.