What does the Load Classification Number (LCN) describe in pavement assessments?

What does the Load Classification Number (LCN) describe in pavement assessments?

• A. Pavement bearing strengths greater than 25,000 lbs.
• B. Pavement bearing strengths less than 12,500 lbs.
• C. Pavement bearing strengths between 20,000 and 30,000 lbs.
• D. Pavement bearing strengths of any aircraft weight.

Answer: (B)

Load Classification Number shows how much load a pavement can safely bear, expressed in pounds. It’s a way to categorize pavement sections by bearing capacity so engineers can decide which aircraft can use them without causing damage. A lower LCN signals a weaker surface, meaning it’s suitable only for lighter aircraft and may need restrictions or rehabilitation for heavier traffic. Describing strengths as less than 12,500 pounds aligns with that concept, identifying pavements that are too weak for heavier loads and guiding use and maintenance decisions accordingly.

Load Classification Number shows how much load a pavement can safely bear, expressed in pounds. It’s a way to categorize pavement sections by bearing capacity so engineers can decide which aircraft can use them without causing damage. A lower LCN signals a weaker surface, meaning it’s suitable only for lighter aircraft and may need restrictions or rehabilitation for heavier traffic. Describing strengths as less than 12,500 pounds aligns with that concept, identifying pavements that are too weak for heavier loads and guiding use and maintenance decisions accordingly.