Your profile of Ben Hamilton Baillie (NCE 28 July) discusses the option of removing white lines in densely urban and pedestrian shared road surfaces, presently limited to 30mph, and making absence of the white line a default to the lower speed limit of 20mph.
I concur that in such areas, a 20mph limit is probably appropriate and may result in fewer accidents. But I feel that the motorist should be informed of the 20mph limit by either, or both, pillar signs and signs painted on the road surface.
It has also been suggested that the idea be applied to inter-urban roads. Here I become concerned.
We know that on a single carriageway 60mph is the maximum. If white lines are omitted, then the default might be 50mph. Equally if we are already in a 50mph zone, then it is envisaged that omission of the white lines automatically reduces the limit to 40mph.
But, in the absence of repeaters, how would the motorist know the limit in the fi rst place- The use of signage from the beginning would eliminate doubt. Confusion is a recipe for accidents and any system of defaults without repeaters seems to me a certain recipe for confusion.
EJM Hepper (F), Uplands, 61 Queens Road, Alton, Hants, GU34 1JG