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Neil Greig, IAM RoadSmart policy and research director, said a city-wide limit didn’t address “specific problematic roads”.
“It’s a blanket approach,” he added. “On some streets, 20mph is a speed that you might aspire to rather than need to limit yourself to. But there are others where it looks and feels safer to go over 20, and that’s potentially confusing because drivers take their cue from the environment.
“If you look at the evidence, what seems to work is measures like speed bumps and narrower roads. Covering whole areas in one 20mph limit and putting up some signs is a cheap way to do it. We’d rather see investment made in dealing with the streets where there will be the most benefit.”
Allister McKillop, chairman of Currie community council, said he had received 15 calls from concerned residents following the introduction of the new speed limit.
One of them came from an 87-year-old woman who is considering giving up driving altogether amid concerns she will accidentally incur penalty points.
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http://www.edinburghnews.scotsman.com/our-region/edinburgh/blanket-20mph-zone-across-edinurgh-won-t-help-safety-1-4192759