In town centres, 20mph zones, road narrowings and signage. The shared space model works but only where through traffic is minimised by alternative routes being made available. So in the case of Poynton, they're in the process of getting a bypass which will massively improve their shared-space model. That wouldn't work for Marple without some kind of bypass.
On incoming roads, a strategically placed speed camera or average speed cameras. (a thoughtfully placed static speed camera lower down on Stockport Road towards Dan Bank perhaps and Strines, and on Windlehurst and Hibbert lane either average speed cameras or a static camera).
this way, only the offenders are affected and the majority of law-abiding citizens are not.
but what will all this cost I hear....?
Marple's newest bumpy addition cost over £25,000. that's for a handful of signs and some plastic speed humps. God only knows what Windlehurst and Hibbert lane has cost in terms of installation and the constant need to repair the speed cushions and tables. Sadly though, a strong business case for change seems beyond our blinkered Stockport Highways team, but perhaps public opinion and persuation might do the trick instead.