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Hazard perception handbook - RTA

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4<br />

32<br />

keeping a safe following distance<br />

The distance that it will take you to stop your car depends on the speed at which you<br />

are travelling. The faster you go, the longer the stopping distance. for example, you<br />

need almost twice the distance to stop from 90 km/h compared with stopping from<br />

60 km/h, even in the best possible driving conditions – that is, on a sealed, dry road.<br />

Stopping distance.<br />

Distance in metres<br />

<strong>Hazard</strong> <strong>perception</strong> <strong>handbook</strong><br />

150<br />

100<br />

50<br />

0<br />

60 km/h 90 km/h<br />

Initial speed (km/h)<br />

This means that you must increase the following distance between you and the<br />

vehicle ahead as you increase speed. If you don’t do this you may crash into the back<br />

of the vehicle ahead if it has to stop quickly. This type of crash happens to a lot of<br />

provisional drivers in NSW each year, but there’s an easy way to avoid this. It’s called<br />

the three second rule.

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