In message , at 14:41:49 on
Mon, 14 Jan 2013, Paul Corfield remarked:
Yet these increases in dwell time would probably not be as great as the
increase when driver only operation[1] replaced rear platform buses with
a conductor.

[1] Especially where you have to pay the driver and receive change.

Probably not as great but still a factor that needs to be considered -
especially at peak times where buses can be full or already have long
dwell times in Central / Inner London.

Out in the provinces the existence of "all day" tickets (typically
around £4) means people only have to pay once, and combine that with an
"exact change only" policy and it's quicker overall than having people
fumbling in their purses to find their bus pass.
--
Roland Perry