The hazard perception test: how scoring works

Hazard perception is the half of the theory test that people tend to prepare for least, and it catches more of them out than you'd expect. It isn't hard once you understand how it's marked. The trouble is that the scoring isn't intuitive, so people click too late, too early or far too often.

What counts as a developing hazard

The DVSA's definition is something that would make you take action, such as changing speed or direction. The important word is developing. A car parked at the side of the road isn't a developing hazard. The same car becomes one when its indicator comes on and it starts to pull out.

The clips are full of things that could become hazards: parked cars, pedestrians on the pavement, a junction ahead, a cyclist in the distance. Most of them never develop. You're scored only on the ones that do.

How the scoring window works

For each developing hazard there is a scoring window. It opens as the hazard starts to develop and is split into five parts. Click in the first part and you get 5 points; click in the last part and you get 1. Click before the window opens or after it closes, and that click scores nothing.

A click outside the window doesn't take points away. That's why the usual advice is to click when you first notice something that might turn into a hazard, then click again as it develops. If your first click was a little early, the second one still lands inside the window.

What you mustn't do is click repeatedly or in a rhythm. The test detects it, and the clip scores zero. A couple of deliberate clicks per hazard is normal driving behaviour; a burst of clicks is not.

The clues to watch for

Hazards rarely appear out of nowhere. There's almost always an early sign, and spotting those signs is what gets you into the 4 and 5 point range. Things to watch for:

• Movement near the kerb. A pedestrian who looks over their shoulder, a child near an ice-cream van, someone stepping between parked cars.
• Vehicles that are about to move. Brake lights, indicators, a driver's head turning, wheels starting to turn, a bus at a stop.
• The road ahead. Junctions, bends, narrowing roads, crossings, roadworks and the end of a dual carriageway.
• Vulnerable road users. Cyclists, motorcyclists filtering, horse riders and people with prams or mobility scooters.
• Things that block your view. Large vehicles, parked vans and hedges at junctions often hide the real hazard.

When you spot one of these, ask yourself: if I were driving, would I slow down or move over now? If the answer is yes, it's developing, so click.

Common mistakes

Waiting until you're sure

By the time a hazard is obvious, most of the scoring window has gone. Click when it starts to develop, not when you'd be braking hard.

Clicking at every possible hazard

The parked car, the pedestrian on the pavement, the junction on the left: clicking at all of them, every few seconds, adds up to a pattern. Save your clicks for things that are actually changing.

Forgetting that one clip has two hazards

After scoring the first hazard, keep watching. One clip in the test has a second developing hazard, and it's easy to relax too early.

Not practising at all

Plenty of people put all their effort into the multiple-choice questions and walk into hazard perception cold. It's a different skill, and it improves quickly with practice.

How to practise

Practise little and often. Ten minutes of clips a few times a week works better than one long session the night before. While you practise, try saying out loud what you can see developing. It sounds odd, but it trains you to notice the early signs rather than react late.

Real driving helps too. On lessons, or as a passenger, keep naming the hazards you see developing ahead. It's exactly the skill the test measures.

The DVSA's official hazard perception clips are the closest thing to the real test, and they're available in the official DVSA learning materials. Our app's Hazard Perception practice uses the same scoring rules, including zero for too many clicks, and is a quick way to build the habit of clicking early and sparingly.

Facts in this guide come from the DVSA's hazard perception guidance on GOV.UK. See the theory test explained for the full test format.