Where Are Amber Reflective Stud Found on a Motorway?

If you’re studying for your UK driving theory test, you’ve probably come across the question about amber reflective studs on a motorway. It’s one of those details that can trip you up—mainly because it’s easy to confuse with the other coloured studs you’ll find along the road, but this article breaks down exactly where amber studs are located, what each colour means, and how to remember them so you can ace that theory test question.

Motorway stud colors in the UK: 5 (red, amber, green, white, reflective) · Amber stud precise location: Between the central reservation and the carriageway (right-hand edge) · Purpose of amber studs: Separate the carriageway from the central reservation

The table below pulls together the key facts about amber reflective studs and the full system of motorway stud colours.

Where are amber reflective studs found on a motorway?

Amber studs: between central reservation and carriageway

• Amber reflective studs are located on the right-hand edge of the main carriageway, next to the central reservation (TheoryTest.org.uk).
• They separate the carriageway from the central reservation, which is the barrier or strip dividing opposing traffic flows (Driving Masters driving school).
• This positioning means amber studs are on the driver’s right side on a motorway (TheoryTest.org.uk).
• They are also found on dual carriageways, not just motorways (content.govdelivery.com/accounts/UKDVSA/bulletins/12e350f).
• Road‑stud supplier Hi‑Way describes amber studs as marking an area that should not be crossed on the right‑hand side of the road (Hi‑Way Road Studs).

The implication: mastering the amber stud location is essential for passing the theory test and for safe night driving.

Other stud colors and their meanings

Amber is part of a five‑colour system that helps drivers navigate at night and in poor weather. Here’s how they differ:

• Red studs mark the left‑hand edge between the hard shoulder and the carriageway (DVSA GovDelivery bulletin).
• White studs separate lanes of traffic moving in the same direction (content.govdelivery.com/accounts/UKDVSA/bulletins/12e350f).
• Green studs indicate slip roads, junctions and lay‑bys (content.govdelivery.com/accounts/UKDVSA/bulletins/12e350f).
• Green/yellow studs are temporary and mark lane changes during roadworks (content.govdelivery.com/accounts/UKDVSA/bulletins/12e350f).
• Blue studs (non‑reflective) indicate fire hydrant locations (Driving Masters driving school).

The implication: the colour system is logical once you break it down by edge and purpose. Amber is the counter‑intuitive one because it’s on the right, whereas most road markings are on the left.

What colour are the reflective studs between the lanes on a motorway?

White studs: lane dividers

• White reflective studs are placed between lanes to separate traffic flowing in the same direction (content.govdelivery.com/accounts/UKDVSA/bulletins/12e350f).
• They are the only studs found strictly between lanes, not on edges.
• Common distractor in theory tests: white studs are not amber studs – learners often confuse them (TheoryTest.org.uk).

Red studs: hard shoulder edge

• Red studs are located between the hard shoulder and the carriageway (content.govdelivery.com/accounts/UKDVSA/bulletins/12e350f).
• They warn drivers not to drift onto the hard shoulder.

Green studs: slip roads

• Green studs mark the boundaries of slip roads and acceleration/deceleration lanes (content.govdelivery.com/accounts/UKDVSA/bulletins/12e350f).
• They are also used at lay‑bys.

Amber studs: central reservation edge

• Amber studs are found between the central reservation and the carriageway (TheoryTest.org.uk).
• They separate opposing traffic flows and are a key safety feature at night.

Learner drivers who remember that only white studs separate lanes will avoid a common theory test distractor.

The pattern: each colour corresponds to a distinct hazard or transition point. Amber studs are the only ones associated with the central reservation – a critical distinction for safe lane discipline.

How to remember the color studs on a motorway?

Mnemonics for stud colors

• A common mnemonic: “Red on the left, amber on the right, white in the middle, green at the junction” (TheoryTest.org.uk).
• Another mnemonic: “Amber is the same as the central reservation barrier (orange/amber)” (Driving Masters driving school).
• Practice test questions often ask about amber stud location because it is the most counterintuitive (TheoryTest.org.uk).
• Visualizing the motorway layout helps reinforce colour locations (Driving Masters driving school).

Common mistakes in the theory test

• The most common distractor is assuming amber studs mark the left edge – that is red studs (TheoryTest.org.uk).
• Another is thinking white studs are for edge markings – white studs are lane dividers (TheoryTest.org.uk).
• Green studs are sometimes confused with slip road exits – they mark entry/exit boundaries.

Reflective road studs help drivers see lane positions more clearly in low light and poor weather. The Highway Code (Rule 132) outlines the meaning of each colour.

— UK Highway Code (Rule 132) as cited by TheoryTest.org.uk

When teaching learners, I tell them to think of the central reservation barrier – it’s often orange or amber coloured. That makes it easy to remember that amber studs are on the right, near the barrier.

— Driving Masters driving instructor

The central reservation is a physical divider that prevents head‑on collisions. Amber studs reinforce that boundary, especially at night when visibility drops. For learner drivers in the UK, the choice is clear: remember amber = right (central reservation), or risk a failed theory test. For additional context on UK driving regulations, see Government of the United Kingdom: Structure, Powers & Leadership.

Drivers who embed these colour codes into their driving habits will navigate motorways more confidently and avoid costly mistakes on the theory test. For more on driving costs, see Rachel Reeves Car Tax 2026: Rates, Changes & Impacts.