A Novel Effective Method of Traffic Calming

This suddenly slipped into my head the other day from the Great Unconcious, there is nothing new its all up there.
This method does NOT include bumps, chicanes, single lanes or whatever.
A set of traffic lights are strategically placed. The traffic lights turn to red if someone breaks the speed limit, set off by the methods employed in proactive road signs. The traffic is penalised according to how persistent the speed limit is broken. The more it is broken the longer the lights stay on red.
Of course there must be someone out there who has put this into practise.

A little Googling reveals they have been used in Spain for 25 years, also in Portugal. As one cynic noted however there is no revenue with this type of traffic calming.
True but authorities for a little time now have shown they are interested in traffic calming without revenue. We have proactive speed reminder devices. The Police are stopping speeding motorists for an educative talk.