In which case is it allowed to move onto the tram track of the same direction at intersections?

1. 1In the same cases as outside intersections, if the number of lanes and the permitted directions of travel in the lanes are not defined by road signs.
2. 2Entering the tram track of the same direction at intersections is prohibited.
3. 3Only for driving around, a left turn, or a U-turn. In doing so, no obstructions must be created for the travel of the tram.