What are edge line markings used for?

Edge line markings are primarily used to delineate the right or left edges of a traveled way. This function is crucial for guiding drivers along the roadway, providing them with visual cues regarding the boundaries of the travel lanes. By establishing a clear distinction between the road and adjacent areas, edge lines enhance road safety, particularly in low-visibility conditions or on winding roads. When drivers can easily identify the edges of the travel way, they are better positioned to maintain their lane, avoid running off the roadway, and navigate turns and curves effectively.

Other options, while related to road markings, serve different functions. For instance, indicating the beginning of a highway typically involves specific highway signs rather than edge lines, marking pedestrian crossing zones focuses on safety for pedestrians often through different types of markings like zebra stripes, and designating parking spaces requires markings that specifically outline parking areas, which are distinct from edge lines.