yes
Between carriageway and central reservation
They are white. The reflective studs are there for extra safety or when lighting is not available. The studs on the left of the inside lane are reflective green for exiting the motorway at the proper exits on the left-hand side. The red reflective studs are there to warn against exiting at that point, this is because that point is in fact a lane that is joining the motorway.
green
Green studs are on the slip loads. Entrance & ExitsRed studs are on hard shoulder.White studs between lanesAmber studs at central reservation.
What colour are the reflectives studs between the hard shoulder and tye left hand lane of a motorway
Green reflective studs are typically found at the edges of the motorway, marking the boundaries between the main carriageway and the slip roads or exits. They indicate the transition area where vehicles can enter or exit the motorway. Additionally, they help guide drivers during nighttime or low visibility conditions by providing clear visual cues.
These denote the off side edge of a multi lane carriage way, e.g the edge of the cntral reservation. Red denote the near side and green are openings.
Blue reflective studs on the motorway indicate the presence of a motorway service area or a rest area nearby. They help drivers identify locations where they can stop for fuel, food, or rest. In some regions, blue studs may also mark the edges of lanes designated for emergency vehicles.
Amber studs on a motorway indicate the edge of the road and are typically used to guide drivers, especially in low visibility conditions. They are positioned along the lane markings to help enhance safety by delineating the boundaries of the carriageway. These studs can also be found at junctions and other critical points to aid navigation.
they mark a slip road
Amber/yellow cat's eyes mark the entrance of a motorway.
Cats eyes