Asphalt smear is best described as which of the following?

Asphalt smear is best described as which of the following?

• A. Tire imprints from braking
• B. Marks left by melting tar component in asphalt road surface
• C. Oil staining from vehicle leaks
• D. Creases from road expansion

Answer: (B)

Asphalt smear arises when the bitumen in asphalt becomes soft and sticky and transfers onto another surface or leaves a smudged mark on the road. In hot conditions or under heavy friction, the tar component can melt and smear, producing broad, irregular dark marks rather than a clean tire tread pattern. This distinction helps separate it from tire imprints, which show clear tread designs; oil leaks, which form pools or staining from fluids; and road expansion creases, which are structural cracks or folds. So, marks left by melting tar component in asphalt road surface best describe asphalt smear.

Asphalt smear arises when the bitumen in asphalt becomes soft and sticky and transfers onto another surface or leaves a smudged mark on the road. In hot conditions or under heavy friction, the tar component can melt and smear, producing broad, irregular dark marks rather than a clean tire tread pattern. This distinction helps separate it from tire imprints, which show clear tread designs; oil leaks, which form pools or staining from fluids; and road expansion creases, which are structural cracks or folds. So, marks left by melting tar component in asphalt road surface best describe asphalt smear.