We've had a bit of success in encouraging residents to use the Police non-emergency number to report speeders; several habitual speeders have received a home visit from the Police and they no longer speed. How much this creates a local "no-speed" zone in drivers' minds is anybody's guess but we are now thinking of starting a disinformation campaign by social media, on the grounds that the community is small and most of the speeders and short-cutters are locals and commuters.
We have had a couple of smiley SID (Speed Indicator Device) surveys and they showed that after we got one chicane installed the numbers of cars cutting through dropped by 24%, which is pretty good value for money. Our street is restricted to access only but drivers coming out of town only have to do a quick left, whizz through then left again and they are back on their route home. The choice between staying on the main road or breaking the law and cutting through is a fine one and depends on where they think they will be delayed the least. I have been on the phone to local highways departments (our road bridges two local authorities) and have got them to replace and freshen up the restriction signs at each end, which ought to help reinforce the message.