Lesson 15. Mandatory signs: chapter D and the compulsory direction of travel
The seven round blue signs D1 to D7 — what they impose, what they precisely do not regulate, how far they reach and how the arrow on the road surface does the same job.
The seven round blue signs D1 to D7 — what they impose, what they precisely do not regulate, how far they reach and how the arrow on the road surface does the same job.