§ Dr. Marekasked the Secretary of State for Transport (1) how many applications by local authorities for the installation of safety barriers on trunk roads have been refused in each of the last five years for which figures are available;
(2) what criteria must be satisfied before safety barriers are installed on trunk roads in England;
(3) what are the current specifications for safety barriers on motorways and on trunk roads;
(4) what data are available to his Department on the performance of road safety barriers;
(5) what is his estimate of the natural life of safety barriers on motorways.
§ Mrs. Chalker[pursuant to her reply, 11 February 1985, c. 25]: I regret that my reply of 11 February in relation to part 4 of the question was incorrect when it stated that there are two or three cases per year of vehicles penetrating safety fences, causing casualties. I called for further investigations, which have revealed that there has been an average of 27 such cases per year on motorways, over the past three years. Information relating to all-purpose dual carriageway is not available.