In 2002 a Transit Digital Art Lab prototype wa s proposed for a chain of new light rail stations. The prototype was designed to act as an accessory, and an insertion into an already advanced and expanding transportation system. This prototype was vanguard. It was recipe for a MIL City “MACHINE.” Machine Part 1: Bi - State Metrolink3 is a light rail transit system serving the Illinois and Missouri (USA) - Bi-State St. Louis Metropolitan region. The Metrolink light rail construction began in 1990. The initial 17-mile (27 km) segment ran from Lambert-St. Louis International Airport to East St. Louis, Illinois. Nineteen stations opened in 1993. In 2005 Metrolink underwent a major expansion, with 8 miles of track and 9 new stations, and a major redesign of an existing station. This 8-mile (13 km), 9- station extension was funded by a $430 million Metro bond issue. The extension opened to the public on August 26, 2006.