Core: Placing the warning triangle when breaking down on the hard shoulder

The rule from Book p.169 has two parts. First the distance: about 30 metres behind the car, one flat figure, not tied to road type — so on the motorway too it is simply 30 metres, no more. Then the exception: the duty only applies if your car forms an obstacle that approaching drivers cannot notice in time. If your hazard lights are blinking and the car already stands clearly visible, the triangle is not mandatory — but it is wise, since the extra warning costs you nothing. Some driving instructors advise keeping a larger distance on the motorway itself, because of the higher speed of the surrounding traffic — a sensible practical tip, but the book gives no separate, larger figure for this exact situation. For the exam, the book's own text applies: about 30 metres. For the rest of the procedure — where you stop, the safety vest, waiting behind the crash barrier, and calling roadside assistance with your location via the hectometre marker — the same approach applies as for a breakdown during a traffic jam; that is taught in the lesson on traffic-jam behaviour and breakdowns.