Why are yellow lines painted across the road on the approach to some roundabouts?

Explanation: Yellow lines are painted across the road on the approach to some roundabouts. The lines are usually found on dual carriageways, where traffic speeds are higher, or at the end of motorway exit slip roads. They provide a visual warning to remind drivers to check their speed.

Category: Band 2 traffic signs and signals

References: The Official DVSA Guide to Driving: Section 6, Know Your Traffic Signs: Page 68