On Sun, 19 Nov 2006 16:48:22 +0000, Paul Corfield wrote:

Of course, there will be major problems when the next 7/7 type emergency
happens and a station has to be evacuated. Normally in such cases the gates
are all opened to ease egress, but how many PAYG Oyster customers will stop
to make sure they won't lose out on a fiver, thereby causing mass blockage
at the gates?

No there won't as there are special facilities built into the entire
system to deal with emergency situations. These have been enhanced to
add new functionality as part of the software developments to support
this change to pre-pay arrangements.

That does solve the problem of people being charged £4 for being
evacuated, but doesn't necessarily solve the problem posed...