Saw this article on the BBC website.

http://www.bbc.co.uk/news/uk-england-london-16357124

Ken Livingstone can criticise Boris Johnson for raising fares, but of
course he never did that when he was Mayor, did he?

Also of interest is the statement at the end of the article saying
that 40% of people travelling on London Buses are doing so for free or
at a discount.

I wonder what effect this 40% has on bus fares for the remaining 60%?