These 5000 signs are absolutely a big move, no doubt about that. I'm just saying it's not something that comes out of nowhere, but it's part of a change that's

These 5000 signs are absolutely a big move, no doubt about that. I'm just saying it's not something that comes out of nowhere, but it's part of a change that's been going on for decades. They're probably confident enough about the results that it's time to pick up the pace and do more at once. And consistency is also important. Having some streets 30 km/h while similar streets in other places are 50 km/h can be confusing.