The driver of a vehicle must not change course if this would likely cause a sudden change of speed or direction by a vehicle or streetcar that is approaching from behind on the same course that the driver would be on after changing course.
Except in the following cases, when proceeding down a vehicle traffic lane demarcated with road markings to show that a change of course is prohibited for vehicles in that lane, the driver of a vehicle must not change course beyond where those road markings start:
when bringing the vehicle towards the left or right side of a road pursuant to Article 40 or if it is impossible to continue to proceed down the current vehicle traffic lane due to road damage, road work, or any other obstruction;
when attempting to proceed in compliance with Article 40, or when attempting to proceed in accordance with the provisions on traffic distribution in a vehicle traffic lane where the vehicle is unable to proceed due to road damage, road work, or any other obstruction.