Roadside survey of vehicle registration marks. Dataset consists of photographs of cars on the UK road network, and auto-captured number plate data, for purposes of estimating rate of Vehicle Excise Duty (VED) evasion, and estimating proportion of foreign-registered vehicles on British roads. Photos are taken at c. 200 sites around UK each June. Roughly 1.5-1.7 million marks captured per year. Survey now moved to biennially rather than annually, operating in odd-numbered years from 2011 onwards.
