I'm quite new to London, and the vagaries of the TfL ticketing system;
overall I'm quite impressed by how well it works for something so
complex - but there are some things I can't quite get my head around.

I understand that a ticket on NR trains must be valid for every station
at which that train stops. I've also had a quick look over section K
of the National Fares Manual about Travelcard extension fares (although
to be honest, it scares me).

I've currently got a Zone 2 travelcard on Oyster. I've also got a
Young Persons Railcard.

I want to travel from Kensal Rise (zone 2) to Acton Central (also zone
2); this train's only intermediate stop is Willesden Junction (zone 3).
What kind of ticket should I ask for at the booking office, how much
would it cost me, and what kind of proof would I need to show of what's
loaded onto my Oyster card? (a boundary zone 2 to boundary zone 2
single?)

Now, for a slightly tricker one: Acton Central to Harringay Green
Lanes. With this journey, the train leaves zone 2 on three occasions
(at Willesden Junction, Hampstead Heath, and Crouch Hill, just before I
get to Harringay). Would this need two of the above tickets, as well a
a boundary zone 2 to Harringay GL, or is this a case of combining a Z2
7DTC with a Z3 ODTC, and entirely confusing any conductors I happen to
encounter?


Hopefully there's someone lurking here who understands the NFM better
than I do..

cheers,
- martin