In this situation, are you obliged to continue driving in the right lane?

In this situation, the right-hand lane is clear and allows for free travel straight ahead. According to the rule of driving on the right and Art. 16 para. 4 of the Road Traffic Act, the driver is obliged to drive as close as possible to the right edge of the roadway. This means you must use the right lane unless you are performing an overtaking manoeuvre or changing direction.