We'll have have an in-depth bike blog post shortly on today's transport select committee report into roady safety. The report reminds us that 3,085 cyclists were killed or seriously injured last year – 15% up on 2010 – and also notes that several of the witnesses the committee interviewed "felt that there was a lack of leadership from Government in the area of cycle safety."

One city that is clearly showing leadership on cycle safety is Copenhagen. In April, it added to its reputation as a cycling mecca with the opening of its cycling 'superhighway' network, which the New York Times gave a flavour of on Tuesday:

Several biking innovations are being tested in Copenhagen. Some, like footrests and "green wave" technology, which times traffic lights at rush hour to suit bikers, have already been put into place on the superhighway. Others, like garbage cans tilted at an angle for easy access and "conversation" lanes, where two people can ride side by side and talk, might show up on long-distance routes in the future.

The Cycling Embassy of Denmark also highlights one of its more curious features, "air pumps every 1.7 kilometres."

Copenhagen's superhighways seem to have generally been met with a more positive reaction than London's four cycle superhighways, the first of which opened in 2010. Four more are planned in 2013, with a further two by 2015.

To get a better sense of how the two city's superhighways compare – and to give a idea of what they do or don't contribute to road safety – we'd like you to share your photographs on our bike blog Flickr group. We'll bring the best back on to the Guardian site for a gallery of the cities' superhighways.

Here are a couple of examples:

London

London's cycle superhighway 7, by Jack999 on Flickr

Copenhagen

The superhighway on Nørrebrogade, a main road Copenhagen, by SirPecanGum on Flickr