C
cantaloup63
Hard Shoulder = Tarmac covering
Soft Shoulder = Gravel or similar
http://en.wikipedia.org/wiki/Shoulder_(road)[/QUOTE]The interesting thing in that article also relates to something Wotan referred to also - the hard shoulders on motorways is designed for occasional use and will not stand regular wear and tear which being used during times of congestion seems to imply that it will need regular replacement. This means increased costs and even more motorway lane closures in the future.
Apart from anything else, when one has stopped on a hard shoulder, it is essential that one uses it to get up to motorway speeds before moving onto the main carriageway; this is not likely to be safe if it has been worn down with inevitable potholes etc and may actually eventually become a hazard.