It's not the technology that important here but the fare structure.

There are several other metro areas using exactly the same technology
where there is no opportunity for a systematic overcharge to occur.

Could you unpack that for me please? I'm not really into these things
but ISTR being told in HK, Tokyo and Melbourne that one had to use the
card in *and* out to get the lowest fare. Does it not follow if there
is anything other than a flat fare?
--
Robin
PM may be sent to rbw0{at}hotmail{dot}com

"Robin" wrote in message
...
It's not the technology that important here but the fare structure.

There are several other metro areas using exactly the same technology
where there is no opportunity for a systematic overcharge to occur.

Could you unpack that for me please? I'm not really into these things but
ISTR being told in HK, Tokyo and Melbourne that one had to use the card
in *and* out to get the lowest fare. Does it not follow if there is
anything other than a flat fare?

Other systems in use:

1) South Sweden - The system assumes the minimum journey length unless the
user manually sets a longer journey at the start. If starting on a bus then
you have to tell the driver to do this, but if starting on a train you do
this at the automatic machines. You are now on trust not to go outside the
selected zones upon pain of fine if caught (just like LT really). This is
definitely the same basic technology as London.

2) Helsinki - The same except that as there are only three zones the user
can also select outer zones at the machine. This is a proximity card, but I
don't know who supplies it.

3) Lisbon - There are only two zones here and you tell the system how many
zones you want to travel by having two cards (one loaded for one zone and
the other for two), of course most people only ever make one or the other
and don't actually have two cards. Again, this is a chip card but I don't
know who supplied it

tim

1) South Sweden - The system assumes the minimum journey length
unless the user manually sets a longer journey at the start. If
starting on a bus then you have to tell the driver to do this, but if
starting on a train you do this at the automatic machines. You are
now on trust not to go outside the selected zones upon pain of fine
if caught (just like LT really). This is definitely the same basic
technology as London.
2) Helsinki - The same except that as there are only three zones the
user can also select outer zones at the machine. This is a proximity
card, but I don't know who supplies it.

Thank you.

These systems all seem to involve no "touch out" at all. So I would
predict a massive increase in fare evasion if introduced here.
Londoners are not Scandinavians. (And I still remember well what it
used to be like on the NLL before it became gated. On the rare mornings
they were checking for tickets roughly 1 in 5 turned round and walked
away.)


--
Robin
PM may be sent to rbw0{at}hotmail{dot}com

In message , Robin
writes

These systems all seem to involve no "touch out" at all. So I would
predict a massive increase in fare evasion if introduced here.
Londoners are not Scandinavians.

It's also the case that in some European countries, even accidental fare
evasion often results in a massive on-the-spot fine (typically 50 euros
in Italy for failing to validate a train ticket), which is nearly twice
the amount of a promptly-paid TfL "penalty fare".

--
Paul Terry