Thank you Paul. I'm getting confused here about the zones for Watford Jn and Watford tube stations
My colleague - who travels to Watford (met line) leads me to believe that station is in Zone 7
I'm still trying to confirm the zoning for Watford Junction.
Your colleague is right, I was wrongly thinking Watford High St (LO) and Watford (LU) were in the same zone.
But regarding zones, as pointed out earlier "Zone W" is a fudge for
Oyster▸ PAYG▸ purposes, it isn't a term you'll see marked on the map. Letter Zones are basically just a way of charging "special" fares, usually it means that the fare is set by the
TOC▸ rather than
TfL» .
IIRC▸ "Zone W" was the first to be explained publicly, but the tube maps of the day had the annotation "special fares apply" at Watford Junction...
Paul