You’re at a set of traffic lights in the left-hand lane. You are intending to turn left. At which of these traffic lights should you NOT move?

Explanation: Some junctions have what are called 'filter' lights. These are separate signals for different lanes. You'll find them at major junctions, and it's their job to optimise the flow of traffic through the junction. As you approach the junction, check which lane you need to be in, and proceed when the corresponding green lights shows.

Category: Road and traffic signs (2023)