The **ISA** (Intelligent Speed Assistance) is a system that helps the driver maintain a **correct speed**. This system is based on the recognition of traffic signs, specifically **speed limit** signs.

- The ISA detects these signs and can display the maximum allowed speed on the vehicle's **instrument panel**.
- In some vehicles, the system not only warns the driver but can also **automatically reduce the speed** if the vehicle is exceeding the allowed limit.

This ensures that the driver maintains an appropriate and safe speed, adjusting to road conditions and traffic regulations.