In which direction or directions indicated by the arrows is traffic permitted?

Explanation

The opposite flows are separated by marking 1.11, a solid line combined with a broken one, and the solid line is on the car's side. Line 1.11 may be crossed from the broken-line side, and from the solid side only when finishing overtaking or going around, so the left turn and the U-turn are prohibited and only straight ahead is allowed (Rules, marking 1.11).