Under what conditions is it safe to use cruise control?

Using cruise control is safest under dry road conditions with good visibility. In these circumstances, drivers can maintain a consistent speed without having to constantly adjust the accelerator, which can help conserve fuel and reduce fatigue on long trips.

In dry conditions, the road surface provides adequate traction, allowing for smooth acceleration and deceleration when necessary. Good visibility enables the driver to anticipate road situations ahead, making it easier to react safely if required. This combination contributes to a safer driving environment, thereby justifying the use of cruise control.

On the other hand, using cruise control in wet or foggy conditions poses risks, as these environments can significantly reduce traction and visibility, making immediate reactions essential for safety. Similarly, operating cruise control during night driving can be risky if visibility is limited due to poor lighting or if the driver is feeling fatigued. In heavy traffic, the constant need to adjust speed would render cruise control impractical and potentially hazardous.