Which method of testing is noted for its simplicity in assessing pavement conditions?

The North Carolina Hearne Straightedge is recognized for its straightforward design and ease of use, making it an effective tool for assessing pavement conditions. It involves using a long, straightedge to evaluate the surface levelness and smoothness of newly constructed pavements or resurfaced areas. By placing the straightedge over a pavement section, users can easily observe deviations from a flat surface, which serves as an indication of potential issues like uneven settling or incorrect construction techniques.

This method does not require complex setups or sophisticated technology, which contributes to its simplicity. Moreover, it provides immediate feedback on the pavement's surface characteristics, allowing for quick assessments and decisions in the field. This practical and direct approach makes the North Carolina Hearne Straightedge a valuable tool in ensuring that roadways meet required standards for smoothness and ride quality.

Other testing methods, such as the Inertial Profiler or Mechanical Roller, may offer advanced features and greater precision but typically involve more complexity in operation or interpretation of results.