§ Mr. Peter Walkerasked the Minister of Transport what is the cost per mile of erecting a crash barrier in the middle strip of motorways; and what she estimates to be the cost of erecting a crash barrier that also prevented dazzle from headlights.
§ Mr. SwinglerThe cost of a mile of double steel rail crash barrier is about £7,500, though other types now being developed should be somewhat cheaper. Expanded metal mesh anti-dazzle fence costs about £5,500 per mile. We are not aware of the existence of any practical crash barrier for use in this country which also acts as an anti-dazzle screen.