The Guardian environment bloggers have created a Flickr page in conjunction with Warrington Cycle Campaign (famous for its 'Facility of the Month' web pages and 'Crap Cycle Lanes' book).
You can either add your own, or just glance through the selection that other people have posted. You won't know whether to laugh or cry.
Camden CLOCS up another first
City of London Corporation Survey 2017
Cycle speed humps in Hyde Park - our concerns