Tom Anderson wrote:
Oh yes? And where, pray tell, do the National Rail trains at Walthamstow
Central go? Or Greenford? Or any of the NLL stations?

I don't know about all lines, but we were talking about GN and
Thameslink, which aren't just London based services. The NLL is a bit
odd, having always shown up on tube maps and been considered, pretty
much, like a tube service (except without the frequency of service,
station staffing etc).

I can't comment on the other lines as I've never used them. For me,
just showing the name of a line wouldn't ever help encourage me to use
them as I still don't know where they go from/to.

Jonathan