Surveying services. Survey design services. The requirement is for a contractor to plan, organise and conduct a roadside survey to monitor the extent of vehicle excise duty evasion in the United Kingdom. In conducting the survey, the contractor will be required to record the registration marks and images of vehicles observed to be in use at 256 pre-determined roadside sites across the United Kingdom during June 2013. The survey must be conducted in line with specific guidelines and, to ensure accuracy, all survey data must be collected through automatic number plate recognition technology with every registration mark collected subject to an additional manual check. Once collected and verified, the survey data must be returned to the Department in an agreed electronic format for subsequent processing.