Hazard perception test explained: how scoring works and how to pass

The hazard perception test is the video part of the UK theory test. You watch 14 clips and click when you spot a developing hazard. The earlier you click once a hazard starts to develop, the more you score, up to 5 points per hazard, and you need 44 out of 75 to pass.

What the test involves

After the multiple-choice questions, you are shown a short video about how the hazard perception test works. You then watch 14 video clips of everyday road scenes. Each clip contains at least one developing hazard, and one clip has two (gov.uk: hazard perception test).

A developing hazard is something that could make you change speed or direction, such as a pedestrian stepping towards the road or a vehicle starting to pull out. You click the mouse as soon as you see a hazard starting to develop.

gov.uk gives its own example. A car is parked at the side of the road and is not doing anything, so it would not make you take action and is not a developing hazard. As you get closer, its right-hand indicator starts to flash and it begins to move away. You would need to slow down, so it is now a developing hazard, and that is the moment to click.

How scoring works

• You can score up to 5 points for each developing hazard.
• The earlier you spot the hazard developing, the higher your score.
• There is no fixed time window published on gov.uk, so the practical advice is to react as soon as you notice the hazard begin to develop.
• You do not lose points if you click and get it wrong, so a mistaken click costs you nothing.
• You will not score anything if you click continuously or in a pattern.

The pass mark is 44 out of 75 (gov.uk: pass mark and result). You must pass this part and the multiple-choice part to pass the theory test.

Rules that catch people out

• One attempt per clip. You only get one attempt at each clip, and you cannot review or change your responses.
• No going back. Each clip plays once, so you cannot return to a clip you were unsure about.
• Pattern clicking scores nothing. Clicking constantly or in a rhythm in the hope of catching a hazard does not work, and that clip scores zero.

How to prepare

1. Know what a developing hazard looks like. Read the Highway Code sections on road users requiring extra care, such as pedestrians, cyclists and motorcyclists, because many hazards involve them.
2. Practise with real clips. Try the hazard perception practice (needs a free account) so the timing feels familiar before test day.
3. Click when you see the change, not the object. A parked car is not a hazard. A parked car with its door starting to open can be.
4. Click early, but do not click constantly. A wrong click costs nothing, so a couple of clicks as a hazard develops is safe. Constant or rhythmic clicking scores zero.
5. Check your knowledge elsewhere. Take the free diagnostic to see how your multiple-choice knowledge compares, since both parts must be passed.

For the full structure of the test, see our guide to how many questions are in the car theory test and what the pass mark is.

theorytest.ai is independent and is not affiliated with the DVSA. The figures above come from gov.uk, so check there before you book in case they change.

Frequently asked questions

Do I lose points for clicking at the wrong time?

No. gov.uk says you do not lose points if you click and get it wrong. You only score nothing if you click continuously or in a pattern.

How is the hazard perception test scored?

You can score up to 5 points for each developing hazard, and earlier clicks score higher. The pass mark is 44 out of 75.

How many clips are in the hazard perception test?

There are 14 video clips. Each has at least one developing hazard, and one clip has two.

Can I go back to a hazard perception clip?

No. You only get one attempt at each clip, and you cannot review or change your responses.

What happens if I click all the time?

You will not score anything if you click continuously or in a pattern.