There is a roundabout by me that I use regularly. I have asked friends and family and can't get a general consensus on what lane is the correct one to use when exiting from one particular exit to go towards where I live.
Diagram attached. There is signage but I'm not sure whether that applies only to Road A1 and so then normal roundabout rule apply to the rest of the exits or for the whole roundabout. If it applies for the whole roundabout it means that there is only one lane for 4 exits.
Hopefully the diagram explains better than I have. So exiting from the exit with the arrows going to the second exit (shades blue)