§ Mr. Paul MarsdenTo ask the Secretary of State for Transport (1) if he will make a statement on the effectiveness of the materials used to demarcate the hard shoulder on motorways in alerting drowsy drivers when they cross the hard shoulder; [138939]
(2) if he will make a statement on the safety systems for demarcating hard shoulders on motorways. [138940]
§ Mr. JamiesonRaised rib edge markings used to demarcate the hard shoulder have been found to be highly effective in alerting drivers of cars and light vehicles when they stray across the line onto the hard shoulder. They may be less effective in alerting the drivers of larger vehicles.