What is the meaning of the signs?

- Correct answer: Directional, above the lanes before an interchange on an Inter –urban road or a Motorway (Freeway).
- Directional, to a central area or town.
- Directional, to lanes before a junction, and positioned on the left.
- Directional to lanes before a junction and placed on the right.
Why this is the answer
The correct answer in the official bank: Directional, above the lanes before an interchange on an Inter –urban road or a Motorway (Freeway).
These signs hang on a gantry above the road, and each downward arrow points to a specific lane, showing which destination and route number that lane leads to. Such signs stand before an interchange on an inter-urban road or a motorway, so drivers can pick the right lane in good time. They are not roadside signs placed on the left or right, and they do not point to a town centre.