When repair slope matches runway slope, the crater profile measurement lanes are arranged in what relation to the runway centerline?

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Multiple Choice

When repair slope matches runway slope, the crater profile measurement lanes are arranged in what relation to the runway centerline?

When you repair slope to match the runway slope, you lay out the crater profile measurement lanes parallel to the runway centerline. This orientation follows the runway’s length, so the collected depths reflect the longitudinal grade and ensure the repaired surface maintains the same slope along the entire runway. Measuring across the width (perpendicular) would only sample cross-slope, not the longitudinal alignment you’re trying to verify. A 45-degree angle or starting from the shoulder wouldn’t provide the consistent reference needed for assessing slope continuity along the runway.

When you repair slope to match the runway slope, you lay out the crater profile measurement lanes parallel to the runway centerline. This orientation follows the runway’s length, so the collected depths reflect the longitudinal grade and ensure the repaired surface maintains the same slope along the entire runway. Measuring across the width (perpendicular) would only sample cross-slope, not the longitudinal alignment you’re trying to verify. A 45-degree angle or starting from the shoulder wouldn’t provide the consistent reference needed for assessing slope continuity along the runway.

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