§ Mr. David Youngasked the Secretary of State for Transport what has been the estimated density of traffic using each motorway in each of the last 10 years; and how this is divided between lorries, buses and private cars.
§ Mr. RidleyI regret that the information for each motorway in each year could be obtained only at disproportionate cost. The following data are readily available:
Average daily traffic flow on all motorways by vehicle type (Great Britain) Year Cars and Taxis Buses and Coaches Lorries 1973 18,020 180 5,236 1974 18,804 189 5,243 1975 19,492 218 5,148 1976 19,751 218 5,328 1977 20,613 228 5,564 1978 21,195 222 5,562 1979 21,195 230 5,632 1980 22,205 202 5,403 1981 22,030 250 5,175 1982 23,007 263 5,233 1983 23,761 298 5,332