T-6a Plate showing the actual course of the priority road through the intersection (placed on the priority road)
What it means
Under sign D-1 it shows with a thick line where the priority road runs through the intersection, e.g. that it turns left. The thin lines are the minor roads.
In the exam
If the priority road turns and you go straight, you leave onto a minor road and must give way to vehicles travelling along the priority road.