4 ms·
This. I've seen a few small ones in residential areas in California and they prevent speeding because you need to slow down as you cannot go straight but still
by tfigment 4y ago
This. I've seen a few small ones in residential areas in California and they prevent speeding because you need to slow down as you cannot go straight but still allow flow faster than stopping 5 times.
- bombcar 4y agoOne division installed them badly as a retrofit and discovered they needed to add some really big rocks as people were just driving straight OVER the roundabout.