The Department for Transport has just launched a newcompetition to encourage local authorities to open their data.  The £500,000 competition will provide £50,000 to £100,000 funding for successful local authorities to make their traffic and parking data machine readable. 

Details of the competition, which closes on 8 February, can befound at https://www.gov.uk/government/publications/competition-for-opening-local-authority-transport-data.