In this situation, before you overtake the cyclist, are you obliged to sound the horn?

In the video, you are driving on a road outside a town, where the centre of the roadway is marked with a double solid line; a cyclist is riding in front of you, and cars are coming from the opposite direction. Before overtaking the cyclist, you are not obliged to use the horn. The answer is: no.

The Road Traffic Act allows you to use the horn only when it is necessary to warn of danger, and it prohibits its misuse; the obligation to give short horn signals when overtaking exists only outside a built-up area in fog. In good visibility, honking at a cyclist can only frighten them and make them move into the middle of the roadway. Instead of using the horn, you overtake only when you can fit with a lateral clearance of at least 1 m without driving onto the double solid line; if that is not possible, you calmly drive behind the cyclist.

Legal basis: Art. 29 para. 1 and para. 2 point 1, Art. 30 para. 1 point 1 letter b and Art. 24 para. 2 of the Road Traffic Act (Prawo o ruchu drogowym); § 86 para. 5 of the Regulation on road signs and signals