What is a pedestrian's main duty before stepping onto the carriageway?
Explanation
Before stepping onto the carriageway, a pedestrian must be especially careful: judge the distance and speed of approaching vehicles, make sure it is safe to go, and avoid anything that takes their attention away, such as using a phone.
KET reference: KET 44: pedestrians may step onto the carriageway only after judging the distance and speed of approaching vehicles and making sure it is safe; they must avoid anything that distracts them.