Mostly abolish them and make the guilty party in an accident cover everyone's expenses. In severe cases suspend their DL for a decade. People have those things called common sense, tradition, individual responsibility, and experience. We should rely on them much more.
We all know that in CA you drive at the speed limit +5. +10 is actually fine too frequently outside HWY 1 so to speak. Once in a while I see people doing what looks like 85 mph and I question their judgement. But if they stay in the same lane I'm OK with it.
The really dangerous things to be punished for are suddenly crossing 4 lanes for an exit and driving in the left lane slower than the car right behind you.