On Jan 30, 5:42*pm, "Peter Smyth" wrote:

"Mizter T" wrote in message
[snip]
Peter Smyth put in an FOI request for this info last year, and posted
the results here on utl - see (via gg):
http://groups.google.com/group/uk.tr...4747db850d431f

(Of course I suppose these time limits might have changed since then,
but I haven't come across anything to suggest they have.)

They have been changed since then. The maximum journey times are now
helpfully on the TfL website at
http://www.tfl.gov.uk/tickets/oysteronline/12421.aspx

Thanks - I must be losing it as I read that page last week, then
seemingly promptly forgot about it!

It's good that some more info about the workings of the system has
been made available publicly.