To ask the Secretary of State for Transport what his estimate is of the number of people killed in road crashes caused by driver fatigue on (a) motorways, (b) trunk roads and (c) other roads in the last five years. [99636]

Research studies indicate that driver sleepiness accounts for 15–20 per cent. of accidents on monotonous roads, especially motorways and for about 10 per cent. of all accidents on the road network in Great Britain.

To ask the Secretary of State for Transport if he will make it his policy to promote the erection of tiredness kills signs on trunk roads as well as on motorways. [99637]

Signs have been provided on the approaches to service areas on motorways to remind drivers of the need for regular breaks, because opportunities for drivers to stop on motorways are limited. This is not generally the case on all-purpose trunk roads. We have no plans for the erection of additional signs on approaches to trunk road services, unless there is a specific traffic management need at a particular location.