Spirals

These are easier than ordinary roundabouts, but look challenging.

Get in the correct lane as you approach (look for direction signs and lane markings). Stay in the same lane through the roundabout. The lane will be "spun out" to the far edge of the roundabout as you go round, guiding you to the correct exit.

If you need to, change lanes when you can see it’s safe, but don't cross a SOLID white line. See my animation or watch a driven example.

See how this compares to a "drive-thru" roundabout.