During bad weather, drivers should adjust their speed by __________.

Adjusting speed during bad weather is crucial for maintaining control of the vehicle and ensuring safety. Reducing speed allows drivers more time to react to unexpected conditions, such as slippery roads or sudden obstacles. In adverse weather conditions like rain, snow, or fog, reducing speed helps prevent skidding and allows for smoother stops.

Additionally, increasing following distance is important because it gives drivers adequate space to respond safely to other vehicles, especially in reduced visibility or when road surfaces are compromised. This approach not only enhances the driver's ability to control their vehicle but also fosters safer interactions with other road users.