Have you checked out the IET Future Intelligent Cities conference website?
Add 4 and 5 December 2014 to your diary!
http://conferences.theiet.org/future-cities/
'This exciting multi-stream conference will provide a platform to promote the technology behind recent and future developments as well as the critical system integration between industry sectors to create that ‘system of systems’ necessary to achieve thriving, sustainable cities with an improved quality of life.'