where are amber reflective studs found on a motorway?

Amber reflective studs on a motorway are found on the right-hand edge of the main carriageway, next to the central reservation. They mark the line that should not be crossed into the central reservation, providing guidance to drivers especially in low light, poor visibility, or nighttime conditions. These studs help drivers stay in the correct lane and avoid getting too close to the central reservation or median barrier.