Cornwall double roundabouts
What’s with all the double roundabouts in Cornwall? Everywhere that a single roundabout would do, they seem to prefer to put two mini roundabouts instead. Sometimes I can see why they are needed because the roads used to meet at 2 T junctions, but a lot of the time, a single, larger roundabout would have done the job. In some cases it clearly used to before they changed the road. Maybe they work better, but they are confusing until you get used to them.