Which type of line separates the roadway from the sidewalk?

The type of line that separates the roadway from the sidewalk is referred to as an edge line. Edge lines are solid lines that are typically painted along the edge of the road to delineate the area that is intended for vehicular traffic from adjacent areas, such as sidewalks or pathways meant for pedestrians. This clear separation helps enhance safety by ensuring that drivers are aware of the boundary between the roadway and areas designated for pedestrian use.

In contrast, center lines are used to divide lanes of traffic moving in opposite directions, while stop lines indicate where vehicles must stop at intersections or crosswalks. Broken lines serve as guides for lane changes or as markings that allow vehicles to pass if safe to do so. Each of these other types of lines serves a different purpose and does not fulfill the role of defining the boundary between the road and pedestrian areas.