highlandsflyer":39g4am5u said:
I wonder why speeds of up to 100 are tolerated on a large amount of the network.
Could it be that the authorities don't see it as a problem when there is little evidence it is causing a hazard?
There are plenty of parts of the motorway where sitting at 100 would mean cars leaving the road by the dozen.
Where a motorway may be safe for hundreds of miles at the stated limit and a margin above it, yet then becomes safe only around the limit, it would be normal practise to lower the limit to retain a margin.
Going to 80 nationally would mean identifying all these sections and signing them.
You don't have the expectation to be safe at a constant 70 on a 60 limit.
I would suggest the vast majority of motorway users think differently when they settle into the Archers sitting at ninety on the M1.
They expect to attain at least the limit and it is seen more as the standard speed, whereas on the A roads they are actively driving and constantly adjusting.
One trip through the Lakes would make the case very well for retaining the current limits.
Why bother signing for cross winds? Surely any observant motorist would notice they are approaching an exposed area where they might encounter these?
Why sign a blind hump on a B road, or a narrowing road going under a bridge?
Why bother with road signs?
I just don't hear any good arguments for increasing what is, after all, a very selectively enforced speed limit.
Personally, I'm ambivalent to the proposal.
All the same, your perception on how people either expect or should expect to drive on motorways is flawed - on ALL roads, drivers are expected to drive at a speed appropriate to the conditions (and that largely works out).
There are circumstances where signs and other warnings are used, but NONE abdicate drivers' responsibility to drive at a safe speed for the conditions - NONE. That's still a very reasonable expectation, and one that would be expected of drivers taking their driving tests.
Fog, sudden snow, torrential downpour - plenty of things can happen, that may make the safe speed on ANY road be considerably below the speed limit. And drivers are expected - demanded, even, by weight of law - to be able to deal with it.