A panel placed beneath the vertical sign…
Signage: Vertical signs
Explanation
Supplementary panel under a sign: fog
- A panel placed under a vertical sign is a **supplementary panel**.
- Its function is to **add specific information** to the main sign.
- If the indication **“fog”** appears, it indicates the **presence of fog** or that the sign applies in conditions of **low visibility due to fog**.
- In this way, the main sign is interpreted according to the **context** indicated by the panel.
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