The term 'road shoulder' can be broken down into two parts: the road and the shoulder. The road is the paved surface of a highway, street, or other public way, while the shoulder is the area adjacent to the road that is usually unpaved. The crossword solution for this term is 'BERM, ' which is a raised edge of soil or rock that is built up along the side of a road or path. This BERM helps to keep vehicles on the road and prevent them from veering off into the shoulder.