Question Topic: Motorway rules
Sign up to view official DVSA explanations and references to this question
Explanation: The studs between the carriageway and the hard shoulder are normally red. These change to green where there's a slip road, helping you to identify slip roads when visibility is poor or when it's dark.
Category: Motorway rules
References: The Official DVSA Guide to Riding: Section 7, Highway Code: Rule 132