The Portland Streetcar is a two-line streetcar system serving the central part of Portland—downtown and the areas immediately surrounding downtown. The system's first line opened in 2001 and, with later extensions, now follows a route from Legacy Good Samaritan Medical Center at NW 23rd Avenue through inner-Northwest and Southwest, including the Pearl District and Portland State University, to the new South Waterfront neighborhood, where it connects to the Portland Aerial Tram. In 2012, this route was given the designation North-South Line, or NS Line.