What colour are the reflective studs along the left-hand edge of the motorway?

Explanation: Reflective studs are used to help you in poor visibility. Different colours are used so that you'll know which lane you're in. These are

• red on the left-hand edge of the carriageway
• white between lanes
• amber on the right-hand edge of the carriageway
• green between the carriageway and slip roads.

Category: Vehicle handling

References: The Official DVSA Guide to Driving: Section 11, Highway Code: Rule 132