The Relief Line (formerly the Downtown Relief Line) is a proposed rapid transit line for the Toronto subway system, intended to provide capacity relief to the Yonge segment of Line 1 and Bloor–Yonge station and extend subway service coverage. Several routes are being considered. Several plans for an east–west downtown subway date back to the early 20th century, most of which ran along Queen Street. Since the early 21st century, studies propose a line that would run south from Line 2 Bloor–Danforth, before bending westward along Queen Street into Downtown Toronto. Potential extensions could be made northward from its Line 2 connection in the east, as well as westward and northward from downtown to form a U-shape.