In which case is it prohibited to drive onto the same-direction tram tracks located at the same level as the carriageway?

• 1When travel on it is prohibited by road signs or road markings.
• 2When the width of the carriageway is sufficient for driving around without moving onto the tram track.
• 3If, when moving onto the tram track, an obstruction is created for the travel of a tram.
• 4Answers 1 and 2.
• 5Answers 1, 2, and 3.