To significantly reduce the speed of your vehicle, it is essential **to ensure that you do not endanger other drivers**. This is because a sudden and unexpected reduction can cause risky situations, especially if the vehicles following you are not prepared to react in time.

- **Defensive driving**: It is important to maintain a **speed appropriate** to the traffic and road conditions. This allows you to anticipate potential risks and react safely to unforeseen events.

- **Signaling maneuvers**: Although it is crucial to signal the maneuvers you are going to perform, such as reducing speed, the most important thing is to do it in a way that does not surprise other drivers. This means ensuring that the speed reduction is not sudden and that others have enough time to adapt.

- **Use of the brake**: When reducing speed, it is advisable **to use the brake gently** to decrease speed gradually. This helps to avoid sudden braking that could endanger the vehicles following you.

In summary, before significantly reducing speed, check that you are not creating a dangerous situation for other drivers. This is achieved through preventive and efficient driving, anticipating traffic conditions and signaling your intentions appropriately.