We had a lot of sections of 3 lanes in Norfolk and the attrition rate was gruesome.
Dad used to say "one lane for coming, one lane for going and one for death": he impressed on me the need to be so very careful and overtake as normal, not when there was a car closer than was safe in the other lane.
I suppose they were a good idea when traffic was very light, I hope they have all been eliminated now.
