In this situation, are you driving on a two-lane carriageway?

In the video, you are driving on an expressway outside town, through a tunnel under a wildlife crossing, then along a section with barriers; the roadway has two lanes in your direction separated by a broken line, and on the left a central reservation separates you from the opposite roadway. You are driving on a roadway with two lanes. The answer is: yes.

The Road Traffic Act defines a lane as each of the longitudinal strips of the roadway wide enough for one line of multi-track vehicles, marked or not marked with road signs, and a roadway as the part of the road intended for vehicle traffic. In the video your roadway is divided by the broken line P-1 into two lanes: the right one for driving and the left one for overtaking; the emergency lane (hard shoulder) on the right beyond the solid line is not a traffic lane. The number of lanes decides many rules: on a roadway with two lanes in one direction you drive in the right lane and use the left one only for overtaking, because the Act requires you to drive as close as possible to the right-hand edge; overtaking on the right is allowed on a one-way roadway with marked lanes; and when changing lanes, you give way to drivers in the lane you are moving into. On an expressway you also keep a following distance of at least half your speed in metres.

Legal basis: Art. 2 point 6 and 7, Art. 16 para. 4 and Art. 22 para. 4 of the Road Traffic Act (Prawo o ruchu drogowym)