You are in the left-hand lane at traffic lights. You are waiting to turn left. At which of these traffic lights must you NOT move on?

Explanation: At some junctions there may be a separate signal for different lanes. These are called 'filter' lights. They're designed to help traffic flow at major junctions. Make sure that you're in the correct lane and proceed if the way is clear and the green light shows for your lane.

Category: Road and Traffic Signs

References: The Official DVSA Guide to Driving: Section 6, Highway Code: Page 102, Know Your Traffic Signs: Page 119