Triangle road sign side 90 in iron class 1 fig. 389 "deformed road"

Main technical features:

• Shape: Equilateral Triangular

• Side: 90 cm (standard size for country or high-traffic roads).

• Material: Galvanized iron sheet

• Anti-corrosion treatment, resistant to atmospheric agents.

• Reflectivity class: Class 1

• Low-intensity reflective film, conforming to specifications for areas with medium light or visibility.

• Figure code: Fig. 389 according to the Regulations for the execution and implementation of the Highway Code.

• Type: Permanent danger sign


Signal Meaning:

• The "Deformed road" sign (fig. 389) warns of dangerous irregularities on the roadway, which can compromise the stability of vehicles or cause loss of control.


The deformations can be:

• Depressions

• Unmarked speed bumps

• Sagging of the road surface

• Longitudinal or transverse deformations

• Unevenness due to work or settlement of the ground


Graphic appearance:

• Yellow background

• Red frame

• In the center is a wavy black silhouette (curved line), symbolizing the irregular course of the road surface.


Installation areas:

• On stretches of road where the surface is uneven or compromised

• In the presence of structural damage to the flooring

• On country roads, hilly areas, or areas subject to landslides or subsidence

• Often supplemented with a supplementary panel that indicates:

• Extension of the deformed section (e.g. "for 1 km")

• Recommended or mandatory speed limits


Reference legislation:

• Highway Code – Art. 39 (Road signs)

• Implementing Regulation – Annex II, Figure 389

• Complies with EEC standards for vertical signs