There are a number of tools and things people have done to deal with census data for cycling. Here’s a quick listing of them to save me finding them again later.

• ONS comparison of 2001 / 2011 census data for mode of travel to work
• (Drawing) Rings Around The World Static maps comparing changes in London 2001  2011
• Guardian 2011 census map
• Datashine a 2011 census tool (set to look at cycling)
• CTC Census 2001 – 2011

Let me know if you find any others below.