Which surfaces provide less traction than concrete?

• A. Asphalt
• B. Gravel
• C. Brick
• D. Asphalt, Gravel, and Brick

Answer: (D)

Traction comes from how well the tire can grip the surface, which depends on texture, roughness, moisture, and wear. Concrete tends to offer solid grip because of its rough, durable surface. Asphalt is usually rough too, but it can be less grippy when worn, smooth, or wet. Brick surfaces can be smoother or polished, and water or grime can make them slick. Gravel, with loose stones and an uneven surface, provides the least grip as the tire can slide over and sink into the loose material. Because asphalt, brick, and gravel each tend to give less traction than concrete, the option that includes all of them is the best choice.