A line of triangles extending across the roadway that may be used with a yield sign to show the point at which you must yield or stop is known as a...?

A line of triangles extending across the roadway that may be used with a yield sign is known as a yield line. This type of line serves a critical role in traffic control, indicating to drivers where they need to prepare to yield to oncoming traffic or pedestrians. When approaching a yield line, drivers are expected to slow down and yield the right of way to any vehicles or pedestrians that have the right to proceed, enhancing safety and fluidity in traffic flow.

The yield line provides a visual cue, helping drivers understand exactly where they need to stop or yield their right of way. While other markings on the road, such as stop lines and warning lines, serve different functions—stop lines indicate where a complete stop is required, and warning lines are used to alert drivers to potential hazards—the yield line specifically indicates the yielding process, making it distinct in its purpose and function on the roadway.