On 15 Jun 2004 16:10:43 -0700, (Gareth
Davis) wrote:

"Ben Nunn" wrote in message ...

Capping needs to be introduced, and it needs to be smart and effective. The
£90/50 Prepay limit needs to be abolished and the 'nominate a specific
station to pick up your credit' thing must go. Also, a Non-prepay
Pay-as-you-go that bills your credit/debit card would also be far better
than having to add value to the card periodically.


For example if only the last 10 journeys are held and the period is 24
hours then a two zone tube journey could be made on peak (£2 prepay),
followed by 10 bus journeys (that would be capped at £2.50 for a one
day bus pass), followed by another £2 tube journey. The bus journeys
would have 'pushed off' the first tube journey resulting in a £6.50
total for the day rather than a £5.30 day travelcard because the first
journey can no longer be 'seen' by the program in the gate responsible
for the capping. While I admit this is a very contrived example it
illustrates the problem well - especially if the capping period is
scaled up substantially (to say, 1 week) without increasing the
journey storage capacity on the cards. And once you increase the
amount stored on the card it takes longer to read and write back -
causing lots of '96 Seek Assistance' errors as people pull the cards
away too fast without waiting for the green light. These are not easy
(or cheep) problems to solve - which probably explains the length of
time it is taking to come up with a 100% working solution - if one is
ever found.


Why not do a rebate system? Take all the single fares. Let a central
computer workout each night what rebates are do and then automatically
apply them at the next top up (or on demand).

PRAR
--
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