At last something useful is being done. Try riding your bike up that hill - a 40 mph road with double white lines in places leaving no room for vehicles to pass cyclists safely. Friends who lived on Overdale Road had taken to riding downhill on the footpath as they were too intimidated by passing traffic until they were warned off by the Police for riding on a footpath, so they then rode into Romiley and down Vale Road rather than use Otterspool Road. Going uphill is even worse as keeping a straight line is more difficult.
Several years ago I took up this issue with Stockport Highways Department and met their representative accompanied by Andrew Stunell, then our MP. At the time the Highways Department's comment was that it was unnecessary because "so far no cyclist has been killed on that road" !! Hopefully this attitude has now ceased.
At much the same time it was suggested at Stockport’s Cycle User Group for cyclists to use Bunkers Hill Rd by providing access at its lower level, by far the best solution, and thus bypassing the dangerous Otterspool Rd but, as has been the case on many occasions, cyclists recommendations were ignored.