Which of the following is a proactive safety measure when driving?

Using turn signals is a proactive safety measure when driving because it effectively communicates your intention to other road users, helping to prevent accidents. By signaling your turns and lane changes, you provide crucial information to both drivers and pedestrians, allowing them to anticipate your movements and react accordingly. This helps maintain the flow of traffic and enhances overall road safety.

In contrast, tailgating, driving without headlights at night, and ignoring speed limits are actions that create hazards on the road. Tailgating reduces the time available for a driver to react to sudden changes in traffic, increasing the risk of collisions. Driving without headlights at night severely limits visibility, not only for the driver but also for others on the road. Ignoring speed limits can lead to dangerous driving behaviors, reducing the driver's ability to react to unexpected situations. Thus, using turn signals stands out as a responsible and effective practice that promotes safety while driving.