On Apr 20, 9:05*am, "Paul Rigg" wrote:
Vauxhall is a London Terminal, but only if there's a valid route.
Which there isn't from Watford Junction - Euston is your only option,
which also excludes Shepherd's Bush.

The key anomaly is that Vauxhall is a London Terminal but is NOT a
London Group Routeing Point. It has London as a routeing point but
also has Clapham Junction. According to map OV, which controls both
flows, the only valid route from Watford Junction to London Group
Routeing Point is directly into Euston -- but from Watford to Clapham
Junction (and hence Vauxhall) map OV takes you down the West London
Line.

However, given that the single fare to Clapham Junction is higher than
that to London, you're not actually allowed to use Clapham Junction as
a Routeing Point. London would be the only Routeing Point for
Vauxhall.

Double however, it's clear that the shortest rail-only route to
Vauxhall is on the direct train to Clapham Junction. (But NOT via
Willesden on the Overground, which is fractionally further). Which
might make Shepherd's Bush suddenly valid, but then you'd have to
start asking hard questions like what the shortest route to Fenchurch
Street is, and whether your ticket is suddenly valid via Upper
Holloway and Barking. Which leads me to suspect that there in fact
isn't a valid fare from Leighton Buzzard to Vauxhall other than one to
London U1. (Even though NRES were prepared to sell you one.)

So to summarize, I think it's technically invalid, but others may well
differ. I think most people who sometimes travel to Euston and
sometimes to Shepherd's Bush would buy a Travelcard anyway...

Question then. *When Broad Street was open it would have been a valid London
Terminal from Watford Junction. *When it closed peak trains were diverted by
Graham Road curve of course which would have made Liverpool Street a valid
London Terminal,

At the time. But those services ceased before routeing was formalized
and 'Any Reasonable Route' became 'Any Permitted Route'.

The thought at the time was that you could reach Moorgate (NC) from Highbury
and Islington as an alternative to Broad St/Liverpool Street. *Is that not
still the case?

Not any more, though it would very probably have been a Reasonable
Route back in the day. Moorgate is a member of London Group, and
doesn't appear on map OV.

And if you wanted to be pedantic *what about Watford Jct, Willesden Jct,
West Hamspstead INL) West Hampstead (Thameslink) St Pancras and Farringdon

That wouldn't be valid anyway -- the moment you hit Farringdon you're
beyond the validity of a London Terminals ticket.