(19)

(11)

EP 2 646 994 A1

(12)

(43) Date of publication: 09.10.2013 Bulletin 2013/41 (21) Application number: 11799261.0 (22) Date of filing: 29.11.2011

(51) International Patent Classification (IPC):  G08G 1/123(2006.01) (86) International application number: PCT/EP2011/071327 (87) International publication number: WO 2012/072653 (07.06.2012 Gazette 2012/23)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR (30) Priority: 29.11.2010 GB 201020151 (71) Applicant: Tracker Network (UK) Limited Uxbridge, Middlesex UB8 2AD (GB)	(72) Inventor: WHITLOCK, Roderick Uxbridge Middlesex UB8 2AD (GB) (74) Representative: EIP  Fairfax House 15 Fulwood Place London Greater London WC1V 6HU London Greater London WC1V 6HU (GB)