JUDGEMENT:
Learners need to ensure that they select a safe gap in traffic. Being able to judge distance by selecting a safe gap can be difficult for some learner drivers.
It's a matter of judgement and experience - Learner drivers also find it difficult to judge the speed of oncoming vehicles, sometimes learners will pull out and misjudge the speed of the car coming towards them or, if it's a truck, it's important to be mindful that it will take longer for the truck to stop than it will for a car.
(Remember, oncoming vehicles must be at least 3 seconds away from your intersection to enable a safe gap).