In Sweden we have some roads with a lot of accidents caused by people driving above the speed limit.
They fixed this by installing automated speed cams. The goal is not to give people speeding tickets but to get drivers to slow down. It works really well so I actually believe this new Waze feature will be really handy.
Edit: Btw, I use Waze to get alert about the speed cams.
That is a user hostile way to solve the problem, and it still leaves the design issue open. _Why_ are people driving too fast for what the road can safely allow for?
There's a lot of work being put into road design which naturally calms traffic, and a good part of it shows promise. Large wide open boulevards seem to encourage people to driver faster than what is actually safe because they feel comfortable driving at that speed with that much perceived space.
If you narrow the road, add center island obstructions to limit long distance views, remove outside lanes for parking with curb extensions or put in protected bike lanes, roundabouts, better lane markings, they all seem to make drivers more aware of the density of their environment and work to slow them down naturally.
And again.. this all works to get them paying attention to the environment, not simply trained to wait for an automated alert with financial consequences.
Limiting view distance sounds more user-hostile than speed cams. I'd like as much information about my environment as possible.