What do diagonal yellow stripes painted on streets and highways indicate?

Diagonal yellow stripes painted on streets and highways serve as a warning to drivers about a change in the roadway conditions. These stripes typically indicate that the road is either narrowing or that there is an obstruction present. They are meant to alert drivers to proceed with caution and to prepare for potential hazards ahead. Recognizing this visual cue can help drivers adjust their speed and position on the road appropriately to navigate safely past the area.

While other markings might communicate different conditions, such as road construction or one-way traffic, diagonal yellow stripes specifically highlight the fact that there is a change in the road's geometry or an obstruction that requires attention. Understanding these indicators is crucial for maintaining safety on the road.