What should be evaluated regarding ground contact pressure for pneumatic tired rollers?

Evaluating the average ground contact pressure for pneumatic tired rollers is crucial because it directly affects the efficacy of the compaction process. The average ground contact pressure is a key factor in determining how well the roller can compact the material beneath it. It influences the distribution of the roller's weight over its surface area, which in turn affects the performance during the compaction process.

Adequate ground contact pressure ensures that the roller effectively compacts the surface material to the desired density while preventing issues such as surface damage or uneven compaction. Monitoring this pressure can also help in preventing over-compaction or under-compaction, both of which can lead to structural issues in the pavement or base layers being worked on.

While total weight, health and safety compliance, and engine performance are also important factors in the operation of pneumatic tired rollers, none of these directly impact the effectiveness of the compaction process as specifically as average ground contact pressure does.