Final answer:
The most slippery part of a wet road is typically the center of the lane, where oils and vehicle fluids accumulate, creating a slick surface. Tire tracks may provide better traction, while the pavement beside the curb can be less slippery but still risky due to potential water pooling.
Step-by-step explanation:
The most slippery part of a wet road is usually the center of the lane. This is because it is often where oil and fluids from vehicles accumulate, and when mixed with water, this combination reduces traction more severely than other parts of the road. The oils are less frequently washed away here than in the parts of the lane where tires commonly travel, thus leading to a more slippery surface in the center.
The right and left tire tracks may have better traction since they are more regularly traveled by vehicle tires, which helps displace water and other fluids. Additionally, the pavement beside the curb can also be less slippery because water tends to drain to the sides of the road, though pooled water can still pose a risk of hydroplaning.
When driving in wet conditions, it's important to reduce speed, avoid sudden maneuvers, and increase following distances to account for the reduced traction and longer stopping distances.