On Jun 17, 11:14 am, Mr Thant
wrote:
On Jun 17, 11:37 am, XmaX wrote:

Hi, I often travel from Z2 to Z4 via Z1. Can I buy a Z234 travelcard,
or do I need a Z1234? I assume that it might be fare evasion if I use
it, but will it let me through the gates?

A paper Travelcard will, but an Oyster card will count the journey as
via Z1 and charge you an excess (usually - if there's a sensible route
not via Z1 it may assume you've gone that way).

U


But then, I can't buy a 7 day paper travelcard, can I? Besides, how
does the system know which route is sensible? I know that in some
cases it is impossibe to travel between certain stations without
touching Z1, but sometimes you can indeed do it by using another,
longer route. The system doesn't know which route you travel, so does
it assume the shortest one or just looks at the zones you enter or
exit?