The triangle of pre-signaling of danger is a warning sign used in Brazil to indicate road works or an obstruction in the roadway. It is a mandatory sign for road safety and must be visible at a certain distance for drivers to have time to react and slow down. In this article, we will discuss the visibility requirements and distance considerations for the triangle of pre-signaling of danger.

Visibility Requirements

The triangle of pre-signaling of danger is a triangular-shaped sign, with one side measuring 1.20m and the other two sides measuring 0.90m. It must be made of reflective material and must be visible from a distance of at least 150m. The sign must also be illuminated at night, with a minimum of two lamps of 12V, each with a minimum power of 5W.

Distance Considerations

The triangle of pre-signaling of danger must be visible from a distance of at least 150m. This is to ensure that drivers have enough time to react and slow down when approaching the obstruction. Furthermore, the sign must be placed at a distance of at least 25m from the obstruction to ensure that drivers have time to react and stop. The sign must also be placed in a place with good visibility and must be illuminated at night.

In conclusion, the triangle of pre-signaling of danger is a mandatory sign for road safety in Brazil. It must be visible from a distance of at least 150m and must be placed at least 25m away from the obstruction. Furthermore, the sign must be illuminated at night and placed in a place with good visibility.