Line 4 Sheppard is a rapid transit line in the Toronto subway system, operated by the Toronto Transit Commission (TTC). Opened on November 22, 2002, the line is the shortest rapid transit line in Toronto with five stations along 5.5 kilometres (3.4 mi) of track in the district of North York along Sheppard Avenue East between Yonge Street and Don Mills Road. It is also the only line built without any open sections. All stations are wheelchair accessible and are decorated with unique public art.