What is the recommended speed for negotiating a sharp curve in a commercial vehicle?

The recommended practice for negotiating a sharp curve in a commercial vehicle is to reduce speed significantly before entering the curve and maintain control throughout the maneuver. This approach is crucial because commercial vehicles are larger and heavier than standard vehicles, meaning they have a longer stopping distance and a higher center of gravity, which increases the risk of tipping over or losing control when cornering at high speeds.

Reducing speed before the curve allows the driver to maintain better control and stability, enabling them to navigate the turn safely. It helps in managing the vehicle's weight distribution and reduces the likelihood of skidding, which can occur if the vehicle is traveling too fast. By keeping the speed lower while approaching and negotiating the curve, the driver enhances their ability to react to any unforeseen circumstances, such as obstacles or changes in road conditions.

Maintaining the current speed or increasing speed can lead to an unsafe situation, as sharp curves require careful handling to avoid accidents. Similarly, attempting to speed up significantly before reaching the curve would compromise control and increase the risk of losing traction. Increasing speed gradually through the curve is also not advisable, as it may lead to instability. Therefore, the practice of reducing speed well in advance is fundamental for both safety and control in sharp curves.