OFFS

First the A515 in Derbyshire, now this. Trying to get out of Greater Manchester is getting slower and slower.
All that white paint on the A56 was once two lanes, as was the A683 where it runs into the A56 less than a mile further on.
I've no idea if there were specific incidents than brought about the narrowing but as all three roads curve, the jcts are close and the speeds high someone thought we couldn't cope and got out the Dulux.
All it does is push the problem further back up the A56 or the A582 as Wayne Schumacher in his Vectra TDi aims to get past as many HGVs as he can before it goes single lane - I've seen some seriously dumb chancers, going over the cross hatching in the wet, on the bend at over 80mph!
The next jct north on the A56 is the Grane Road, which has been 50mph for several years, and still has a high number of accidents - only one of which would seem to be possibly attributable to going too quick.
http://news.bbc.co.uk/1/hi/england/lancashire/6948153.stm
HGVs are now banned from the road and at the M65 end you've a job to find it off the M-way as the signage at Jct 5 is deliberately obtuse so you stay on until the A56 jct. The Grane is SC and is a little twisty and has a number of climbs and drops. So if the A56 is only suitable for 50mph are we conclude the Grane will go 20mph - looks like that's what the 'residents association' want (The Grane runs through open moorland, so who knows how many member they have!!), I'm guessing they probably just want the accidents to stop so their lives aren't inconvenienced by having a long drive round when the Grane is shut.
As for the A56, have we found any justification for the change? It is as Peter says well built DC with proper junctions. As discussed elsewhere the NSL is being slowly eroded for who knows what reason, for sure it isn't increased safety or saving the planet.
The irony is while this kind of frustrating stupidity is going on I suspect we all know of roads where a lowering of the limit would make far more sense. There's one near both Peter E and I which is 4 miles of narrow twisty A road, practically no overtaking opportunities, its busy and has a couple of tricky junctions and high hedges along its whole length. Making 60mph is not impossible if it's empty but in practice a 40 or 50 limit wouldn't be inappropriate given it's level of use. But hey there's me talking logic.
Barkstar