How the hazard perception test works
The hazard perception test is the second part of the UK driving theory test. You watch 14 video clips filmed from the driver's perspective and click as soon as you spot a developing hazard — a situation that would cause you to change speed or direction. The pass mark is 44 out of a possible 75.
What counts as a developing hazard
Not everything in the clips counts as a scorable hazard. A parked car on its own is not a hazard. A parked car with its door opening, or a pedestrian stepping out from behind it, is a developing hazard. You are looking for situations that are actively developing into something you would need to respond to. Stationary objects, distant vehicles, and predictable road features do not score points. Movement, unpredictability, and proximity are what to watch for.
How scoring works
Each hazard is worth up to 5 points. The earlier you click after the hazard starts developing, the higher your score for that clip — up to a maximum of 5. Clicking too late scores lower. Clicking before the hazard begins developing scores zero. Clicking in a pattern — repeated rhythmic clicks — also scores zero for that clip, as the DVSA algorithm detects this and treats it as cheating. Click only when you genuinely spot a hazard starting to develop.
Tips for improving your hazard perception score
The most common reason learners underperform is reacting too late — they spot the hazard but hesitate before clicking. Trust your instinct when something starts to look like it could cause you to brake or steer. Junctions, pedestrian crossings, parked vehicles, cyclists, and children near the road are the situations that most often develop into scorable hazards. Practising with the clips available here builds your pattern recognition so you start seeing hazards developing earlier rather than waiting until they become obvious.
Practice clips versus the full mock test
Practice clips help you build the habit of early recognition and get comfortable with the click-based scoring system. The full hazard perception mock test runs all 14 clips in sequence under exam conditions and gives you a final score with weak hazard type feedback. Do a few practice sessions first, then move to full mocks when you feel ready.
