On wet road conditions, by what fraction should you reduce your speed?

When driving in wet road conditions, it is recommended to reduce your speed by one-third. This reduction in speed is crucial because wet surfaces can significantly decrease tire traction, thereby increasing stopping distances and the risk of losing control. A reduction of one-third allows for better vehicle handling and gives you more time to react to potential hazards.

Tires have less grip on wet surfaces, resulting in a higher likelihood of hydroplaning and skidding. By lowering your speed, you not only enhance your ability to maintain control of the vehicle but also increase the effectiveness of your braking system. This adjustment is especially important when approaching curves, intersections, or when merging, as your stopping distance will be much longer on wet pavement.

Other options suggest different fractions for speed reduction, which do not adequately reflect the need for safety under such conditions. Reducing speed by a lesser fraction might not account for the complexities and dangers posed by wet roads, ultimately compromising safety.