What color is the border of vertical danger warning signs?
Signage: Vertical signs
Explanation
Vertical **warning signs** are those that alert drivers to potential hazards on the road. These signs have a specific design to be easily recognizable and to capture the attention of drivers.
- **Border color**: The border of these signs is **red**. This color is used because it is eye-catching and commonly associated with warnings and precautions, which helps alert drivers to the presence of an imminent danger.
- **Shape and design**: Warning signs usually have a triangular shape, which also contributes to their easy identification on the road.
In summary, the **red** border of vertical warning signs is a key element in their function of alerting drivers to potential risks on the road.
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