Does the visible double continuous line separate lanes for traffic travelling in the same direction?

In the video, you are driving on a road through a forest; the centre of the roadway is marked by a double solid line, and a cyclist is riding on the right. The visible double solid line does not separate lanes for the same direction - it separates opposite directions. The answer is: no.

The Regulation on road signs and signals states that road marking P-4 "double solid line" separates lanes for opposite directions of traffic and means that you must not cross this line or drive on it. Lanes for the same direction are separated by a single line: the broken line P-1 when you may cross it, or the single solid line P-2 when changing lanes is prohibited. A double solid line is painted where moving into the opposite lane is particularly dangerous - on bends, hills and narrow sections with limited visibility - and it is the strictest of the centre-line markings: you must not cross it or drive on it, even when overtaking a cyclist. In the video this means that you may overtake the cyclist only if you fit within your own lane with a clearance of at least 1 m; if not, you wait until the line ends or changes into a broken one, and until then you drive behind the cyclist at a safe distance.

Legal basis: § 86 para. 1-3 and 5 of the Regulation on road signs and signals; Art. 24 para. 2 of the Road Traffic Act (Prawo o ruchu drogowym)