Biblioteca

The vertical danger sign warns the driver of the proximity of a road section where the carriageway may be slippery due to the presence of snow or ice. Given this danger and the consequent reduction in grip, the driver must drive at a particularly moderate speed to ensure total control of the vehicle and avoid loss of traction. The remaining options are incorrect because increasing tire pressure would decrease the contact area with the ground, further reducing grip on a slippery surface. Maintaining a constant speed can be useful to avoid skidding, but speed moderation is the priority and mandatory attitude required by the danger sign and road conditions.