What type of roller may fail to compact areas narrower than its width?

The steel wheel roller is designed to operate effectively on surfaces that are typically wider than the roller itself, as its mass and rigid structure provide a compressive force that is most effective over larger, more expansive areas. When attempting to compact areas that are narrower than the width of the roller, the machine may not adequately exert pressure on these localized sections, resulting in incomplete compaction.

Steel wheel rollers are generally used for heavy-duty applications, where the goal is to achieve a dense and level surface over broader expanses, such as roads or large construction sites. They work best when there is ample area to cover, allowing them to maximize their efficiency in soil and asphalt compaction. In contrast, pneumatic rollers or vibratory rollers, for example, possess different mechanisms and designs that allow them to better handle narrower areas and adjust their compaction technique accordingly. Static rollers may also have difficulties, but the primary characteristic of the steel wheel roller limits its effectiveness in tighter spaces due to its broader physical profile.