On Thu, 17 Jun 2004 21:45:01 +0100, Tom Anderson
wrote:

Here's a worked example, where someone who lives in the inner suburbs goes
to work in town and goes out somewhere central for lunch. We track the
amount spent (in pence) in zone 6/5/4/3/2/1/buses after each trip. We
start with no spending and no travelcard. This all happens before off-peak
TCs are available (it's a very early lunch). I assume pre-pay prices for
everything.

Start: 0/0/0/0/0/0/0
Catch a bus to the tube station, in Z3: 0/0/0/0/0/0/70; charge 70
Get a train to Z1: 0/0/0/230/0/0/70; charge 230

Isn't it the zone 1 gate which applies this charge?

Get a bus to work (in Z1): 0/0/0/230/0/0/140; charge 70
Get a tube in Z1: 0/0/0/230/0/160/140; charge 160
Get another tube in Z1: 0/0/0/0/0/0/0 + Z123 TC; charge 110
Get the tube home: 0/0/0/0/0/0/0 + Z123 TC; charge 0



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