Safe distance: what it depends on

Keep the right distance based on speed, reflexes, traffic, weather, road, load, brakes and tyres. Behind a snowplough or a salt-spreader: 20 metres.

Between heavy vehicles that cannot overtake: at least 100 metres.

Word: Distanza di sicurezza = the space to stop without hitting the car ahead.

The exam is in Italian: key terms and trap words are kept in Italian, so you learn them.