What does the "no entry" sign look like in Italy?

The "no entry" sign in Italy is represented by a red circle with a horizontal white bar. This design is universally recognized and is used to indicate that vehicles are not permitted to enter a particular area, often applied to one-way streets or restricted zones. The distinct red and white colors make it easily visible to drivers, ensuring clarity and safety on the roads.

In contrast, the other options reflect different types of traffic signs. A triangular sign with a red border usually indicates caution or warnings, while a blue square is often used for informational signs or parking regulations. A yellow diamond shape is commonly used for warning signs, signaling potential hazards or changes in road conditions. Understanding these distinctions is crucial for drivers to navigate effectively and adhere to traffic regulations.