What do rounded arrow marks on the road convey?

Rounded arrow marks on the road are specifically designed to indicate the presence of a circular intersection ahead. This type of marking helps drivers prepare to navigate through a roundabout or rotary, ensuring they understand the need to yield to traffic already in the circle and to adjust their speed accordingly. These markings serve as a visual cue that enhances safety by providing clear guidance on upcoming roadway configurations. Recognizing this symbol allows drivers to make appropriate decisions about lane positioning and navigation before entering the circular intersection.

The other options relate to different types of roadway conditions or instructions. For instance, a speed bump would typically be indicated by other types of warnings, while road construction would often have barriers or specific signs. A right turn only instruction usually involves more direct signage at intersections rather than road markings alone.