Question 590 in the bank

What is the meaning of the following traffic sign?

A blue square with a thin white border, showing a large white arrow pointing upward. Meaning: Entrance to a one-way street.
  1. Correct answer: Entrance to a one-way street.
  2. Freeway ahead.
  3. Follow the direction of the arrow. No entry for bicycles.
  4. One-lane roadway ahead.

Why this is the answer

The correct answer in the official bank: Entrance to a one-way street.

A blue square sign with a white upward arrow is an information sign: the street you are entering is one-way, and all traffic on it moves only in the direction of the arrow. It says nothing about the number of lanes, since a one-way street can have several. Do not confuse it with a round blue sign with an arrow, which is a mandatory instruction to follow the arrow.

Topic: Traffic signs. The bank marks it for these classes: Light truck (C1), Heavy truck (C), Bus (D), Motorcycle (A), Tractor (1), Private car (B).