Hazard Perception Test

ADI Part 1 Hazard Perception Test

Focus HPT discsFor this part of the test you will view 14 video clips on the computer screen. They last about a minute each. You need to watch these clips as if you were the driver of the car, don’t just think of it as a video game!

In all there will be 15 hazards to find – at least one on each clip, but one clip will have 2 hazards.

As with your theory studies, we have no hesitation in recommending the Focus series discs as the best training aids available for part 1. The discs have all of the ADI theory question bank, along with a huge number of practice hazard perception clips. You can purchase this set of discs by clicking the link in the left margin of the page. By buying these discs through this site, you have the added satisfaction of knowing that you’ve contributed towards keeping this valuable site free for all to use.

You can click the left or right mouse button whenever you think you can see a hazard developing. The test requires you to spot what the DVSA call ‘developing hazards’. These are hazards that could become dangerous situations very soon, just as you are driving up to them. The speed at which you click the mouse button as a hazard develops will determine your score for each hazard clip. You can score between 0 and 5 on each hazard. Therefore the maximum you can score is 75 (i.e. 15 hazards x 5). To pass you need a score of 57.

The hazard perception test will start with a short video played on the computer screen that will explain how the hazard perception test works and what you need to do. At the end of this clip you have the option to go onto the test or play the tutorial again.

Try to see the developing hazardsThe hazard clips start with a count down from 10, to make sure that you are ready. The clip will start to play and you have to click the mouse button each time you see a developing hazard.

Each time you click for a developing hazard, a red flag ‘marker’ appears at the bottom of the screen – one flag appears for each click you make in any clip. At the end of the clip all the flags are cleared before you start the next clip.

Each clip contains several potential hazards, but only the one that materialises into a developing hazard is marked.

Usually, the developing hazard is quite obvious . . . once you’Ave seen it!!

You will only receive a score if you spot the hazard before it develops, and click at the right time.

The score you obtain depends on how quickly you spot the developing hazard. The time from when you could first see the developing hazard, to the point at which your reaches the hazard is the period used to determine your score. This is sometimes referred to as ‘the marking window’

The marking window is divided into 5 equal periods. If you click the mouse while in the first section when the developing hazard first appears, you will obtain the maximum score of 5 points. If you click in the second segment you will score 4 points, then 3, then 2 and then in the last segment, 1.

You can click the mouse several times during the marking window, and the computer will always take your highest score and record that for the clip. If you don’t click the mouse button at all in this period of time you will score zero for that hazard clip.

Don’t try to cheat the system by clicking the button repeatedly throughout the video clip because the computer will pick this up. If the computer believes you are cheating you will score zero for that clip. The computer may think tat you are cheating if you click too ‘rhythmically’ or too quickly. Get some practice on the Focus CD Rom’s.

Scoring zero for a clip is not the end of the world . . . we know of many people who have scored zero for a clip and still passed the test easily. The DVSA are fiercely secretive about how this ‘cheat detection’ works, but apparently within the scoring period no such checks are made. We can’t guarantee this, no one can, because the DVSA won’t tell us! But it seems that if you click several times in this window only the first click will be used to determine your score. The first click is, of course, in the highest scoring band because you saw the developing hazard earlier.

There is a certain maximum number of clicks that you can make for each clip. but this is far higher than the number of clicks that anyone is likely to make. If the computer thinks that you are cheating a message will appear at the end of the clip letting you know that irregular activity was detected and that as a result your score for that clip will be zero.

At the end of the test you will have to leave the room and collect your score for the two parts of the exam. The maximum score that can be obtained for the hazard perception part of the theory test is 75 (i.e. 15×5).

To pass the hazard perception part of the ADI part 1 test, moped and motorcycle theory test you need to score 56 points.

Focus CD Rom'sTo pass the theory test you must pass both the multiple choice part and the hazard perception part. If you fail either part you will need to take both parts of the test again.

So, do not be frightened to click the mouse button whenever you think you have seen a potential developing hazard. Keep your eyes open and if it continues to develop, continue to click the mouse button. This will ensure that you click within the scoring period.

Some of these hazards will not develop any further so you will not receive a score for spotting them.

Of course, the developing hazard only becomes obvious after it’s developed . . . so make sure that you click as early as possible for each hazard that you think might develop. This way, you ensure that you maximise your potential marks for the hazard clip.

For example, you see an elderly gentleman riding a pedal cycle along the footpath. This is a hazard, but it isn’t developing into anything more dangerous just yet . . . then, the rider takes a look over their right shoulder (click!). . . now it’s starting to develop, because you and I know what cyclists do without warning! . . . the cyclist veers ( click!) towards the centre of the road, in front of you (click!)

The scoring period for this won’t start until the cyclist veers towards the road. At this instant, the scoring window starts, and you score points by clicking. You would score no points at all for simply clicking the instant you saw the cyclist.

The secret is to recognise the hazard that may just start to develop, then anticipate when it will develop. Time your clicks appropriately. With some practice on the Focus discs, it’s possible to become very proficient indeed.

We can’t tell you exactly what type of hazards you will see in the video clips, but our experience is that you will find that the following frequently pop up . . . pedestrians and cyclists crossing the road without warning or looking . . . cars and vans pulling out of side roads . . . trucks and long vehicles making wide turns . . . vehicles on narrow roads or where there are other obstructions and cars crossing your path on country roads.

If you get hold of the Focus hazard perception practice CD rom’s, you’ll be well prepared. Some of their clips are harder than the real thing.

We wish you the very best of luck with your theory test. Please e-mail us and let us know how you got on and share any hints and tips you may have with the world!

ADIT team