What action is recommended for controlling a bus on a curve?

Slowing to a safe speed before entering a curve and then accelerating slightly through it is the recommended action for controlling a bus on a curve. This approach is essential for maintaining stability and traction, particularly because large vehicles like buses have a higher center of gravity, making them more susceptible to tipping over in sharp turns.

Slowing down before entering the curve allows the driver to negotiate the turn safely without losing control. By entering the curve at a lower speed, you reduce the risk of sliding or skidding, especially in adverse weather conditions. Once the bus is in the curve, it is appropriate to gradually increase speed, which helps maintain momentum without overwhelming the vehicle's stability as it navigates the turn.

This method also allows the driver to better assess the road conditions within the curve, ensuring they can respond to any unforeseen obstacles or changes in the roadway.