Question

What does bruise pattern in skid marks indicate ?

• A. Tires were rotating and skidding in same direction
• B. Only trailer brakes were used
• C. Tires were rolling forward while skidding sideways
• D. Light trailer load

Hint:

Bruise skid marks = Partial contact → Indicates combined forward motion + sideways skid.

Answer 1

The Correct Option is C

Concept: Skid marks are important forensic evidence in accident reconstruction. Different skid patterns provide insights into the motion of the vehicle, braking conditions, and direction of movement.

Step 1: Understanding skid marks.
Skid marks are produced when tires slide over the road surface due to braking or loss of control. The pattern and appearance of skid marks reveal the dynamics of the vehicle.

Step 2: Understanding bruise pattern.
A bruise pattern in skid marks refers to irregular or patchy marks caused by intermittent contact between tire and road surface.

Step 3: Interpretation of bruise pattern.
This pattern indicates that:
• The tire is not fully locked
• The vehicle still has forward motion
• There is lateral (sideways) movement

Step 4: Matching with options.

• Option (A): Incorrect, does not explain irregular pattern.
• Option (B): Incorrect, unrelated to bruise pattern.
• Option (C): Correct, explains forward rolling with sideways skid.
• Option (D): Incorrect, load does not define this pattern. Final Conclusion:
Thus, the bruise pattern indicates that tires were rolling forward while skidding sideways.