Where is sand and gravel most likely to collect on a paved, two-lane road?

Sand and gravel are most likely to collect near the sides of the road due to several factors related to the way vehicles interact with the roadway. As vehicles pass by, the friction and movement can push debris, including small rocks and dirt, towards the edges. Additionally, rain can carry debris from the surface of the road towards the sides, especially if there is inadequate drainage.

The buildup near the roadside can create hazards for motorcyclists, as this debris can lead to decreased traction and stability. Being aware of this can help riders maintain control and navigate their motorcycle safely, particularly when cornering or maneuvering close to the edges of the road.

While sand and gravel can sometimes accumulate in the center of the road or at intersections, these locations do not typically experience the same consistent accumulation from vehicle movements and environmental factors as the sides of the road or shoulders do. The shoulders tend to have more gradual slopes, allowing for debris to settle there as well. However, in the context of a paved road, the areas closest to the lines separating lanes generally collect the most debris.