One local government in Melbourne AU (very close to the city) announced they were doing this for a section of their roads (not including arterial roads). The he

One local government in Melbourne AU (very close to the city) announced they were doing this for a section of their roads (not including arterial roads). The head of the police force said it was ridiculous (so presumably they probably won't enforce it). Despite numerous studies showing the difference in safety for pedestrians, and the fact that most of these streets rarely go above that speed anyway, either due to traffic or physical constraints. But that's car culture for you.