Ideally, the paver moves at what rate?

The ideal operation of a paver involves moving at a constant rate to ensure a consistent and high-quality asphalt surface. When a paver operates at a steady speed, it allows for uniform material placement, which is critical for achieving proper thickness and density of the hot mix asphalt (HMA). This uniformity prevents issues such as segregation of the aggregate and variations in the asphalt layer's properties, which can lead to premature pavement distress.

Maintaining a constant speed also enhances the efficiency of the paving process, as it minimizes the likelihood of interruptions that could disrupt the flow of material and thus compromise the quality of the mat being laid down. Such consistency is essential in achieving optimal compaction and contributing to the overall longevity of the pavement.

In contrast, intermittent or variable speed movements, as suggested by other options, can create irregularities in the pavement surface. These conditions might lead to defects like ripples or bumps, impacting the smoothness and performance of the finished asphalt surface. This makes a constant paver rate not just a best practice but rather a vital aspect of successful HMA application.