What is the maximum allowable deficiency that must be fixed for a rolling straight edge?

The maximum allowable deficiency for a rolling straight edge in asphalt paving is established to ensure a smooth and even pavement surface that meets the required standards for safety and performance. A deficiency of 3/16' ensures that the surface is sufficiently flat, which is critical to avoid issues such as water retention, increased wear on vehicles, and overall road performance.

Maintaining this standard provides a benchmark that ensures consistent quality across the paved surface. By adhering to this maximum allowable deficiency, pavement contractors can effectively manage the quality control of their work, ensuring that any deviations from the expected surface are promptly addressed before the project is considered complete.

Other options present deficiencies that are either too small or too large compared to the established standard. A deficiency of 1/8' might be too stringent and not practical for most construction scenarios, while deficiencies of 1/4' or 1/2' would allow for significant irregularities that could lead to performance issues in the pavement over time. Thus, 3/16' strikes an appropriate balance between construction feasibility and surface integrity.