§ Mr. Muddasked the Secretary of State for Transport what is the number of vehicles using the roads of England and Wales, as a proportion of the 24-hour traffic count, in hours of darkness, in proportion to the number of 48W accidents that occur during the same hours at night in two-lane roads; and if he will categorise these statistics by the type of accident.
§ Mr. Peter BottomleyThe proportion of traffic in the hours of darkness varies with the type of road and with the time of year. Here is an illustrative example:
Principal roads in non built-up areas: October: England and Wales Per cent. Estimated proportion of dark hours traffic Proportion of accidents occurring in darkness (1985): 27 Fatal 43 Serious 32 Slight 27 All 29