What does a triangular warning sign indicate in Italy?

A triangular warning sign in Italy indicates caution, signaling that a driver should be aware of potential hazards ahead. This design is consistent with standard traffic signage, where a triangle is universally recognized as a warning symbol. It prompts drivers to reduce speed and be prepared for any unexpected situations, such as changes in the road condition or other safety concerns that may arise ahead.

While the other options represent important traffic information, they are not indicated by a triangular sign. For example, roadwork would typically be marked with a different set of signs that are specifically designed for construction zones, while speed limits and parking restrictions are indicated by circular and rectangular signs, respectively. Recognizing the meaning of these signs is crucial for safe driving, as they help ensure that drivers remain alert to changing conditions and potential dangers on the road.