A. Amber-colored studs marking the right-hand edge
B. Green studs separating the slip-road from the motorway
C. White studs separate the lanes on the motorway
D. All of the above
A. Amber-colored studs marking the right-hand edge
B. Green studs separating the slip-road from the motorway
C. White studs separate the lanes on the motorway
D. All of the above