Comment UK has them, Waze still useful (Score 5, Informative) 195
We've had averaging speed cameras in the UK for many years (e.g. https://en.wikipedia.org/wiki/.... Many stretches of road with permanent cameras and often seen on major roadworks (e.g. sections of motorway being worked on for months).
Waze maps them as averaging sections with specific camera sites, so it's still useful.