§ 53. Mr. Sorensen
asked the Minister of Transport what approximate road mileage is now provided with central road reflectors; to what extent this device has not yet been adopted where it is needed; what is the average cost per mile of these reflectors; and what is their average life.45W
§ Mr. Marples
We do not keep separate records of the mileage of road fitted with reflecting studs but a rough estimate indicates that at least two-thirds of the trunk and Class I roads which would benefit from having such studs are already equipped with them. The average cost per mile of providing and laying the studs is £125. The estimated life of the metal part of the studs is about twenty years and of the rubber part about four and a half years.