Should you change to the middle lane in this situation when you intend to go straight on?

In the photo you are driving in the right lane of a three-lane roadway in town; a right-turn arrow is painted on the lane, and sign F-10 next to the road shows that from the left and middle lanes you go straight on, and from the right lane only to the right. So if you want to go straight on, you must change to the middle lane. The answer is: yes.

The Regulation on road signs and signals states that sign F-10 placed next to the roadway shows the permitted directions of travel from each lane, as shown by the arrows, and that lane direction arrow P-8b on the roadway means that driving from this lane is allowed only in the direction shown by the arrow. The Road Traffic Act requires you, when changing lanes, to exercise particular caution, switch on your indicator in good time and give way to a vehicle travelling in the lane you are moving into. You check the left mirror and the blind spot, signal and move smoothly into the middle lane before you reach the junction.

Legal basis: § 72 para. 1 and § 87 para. 1 of the Regulation on road signs and signals; Art. 22 para. 1, 4 and 5 of the Road Traffic Act (Prawo o ruchu drogowym)