§ Mr. Stephen Rossasked the Secretary of State for Transport what method is used to decide the proportion of vehicle excise duty and fuel tax revenue attributed to business and non-business use of cars and taxis which appear each year in his Department's allocation of road track costs.
§ Mr. Kenneth ClarkeThe proportions of vehicle excise duty and fuel tax revenue attributed annually to the business and non-business use of cars and taxis for track cost allocation purposes are based on a 1976 estimate of annual car mileages travelled for business purposes, using national travel survey data.