The term "gore" means

The gore is the area, usually similar to a triangle, formed by solid white lines between an existing lane of travel and a merging lane of travel. Gores are most often seen at the convergence of an acceleration lane and the adjacent travel lane on a controlled access highway. The gore is the area bounded by solid white lines between the acceleration lane and the adjacent travel lane. Drivers entering the controlled access highway are prohibited by law from crossing this solid white line, and are required to continue traveling in the acceleration lane until the solid white line disappears.