Which monorail used to begin the monorail that is a 3.9 mile long monorail mass transit system?
Mark IV monorail The Mark IV monorail was a design model of straddle-type monorail trains. The design was developed by legendary Disney Imagineer Bob Gurr. Ten trains were built by Martin Marietta in 1969 at the cost of about $7 million USD each and they were used on the Walt Disney World Monorail System between 1971 and 1989 before they were replaced by the Mark VI monorail, although a few lasted until 1991. Sometime between 1991 and 1994 Monorail Coral and Lime (which had been introduced new in 1984) were sold for $3.5 million each, refurbished, and used to begin the Las Vegas Monorail operations. In 2004 Lime and Coral (now the MGM and Bally) were replaced by fully automated Bombardier MVI 4-car trains.
Addison Road station Addison Road (also known as Addison Road–Seat Pleasant) is an island platformed Washington Metro station in Walker Mill, Maryland, United States. The station was opened on November 22, 1980, and is operated by the Washington Metropolitan Area Transit Authority (WMATA). Providing service for the Blue and Silver Lines, the station is located near the residential area of Seat Pleasant on Central Avenue near Addison Road. In December 2012, Addison Road was one of five stations added to the route of the Silver Line, which was originally supposed to end at the Stadium-Armory station, but was extended into Prince George's County, Maryland to the Largo Town Center station (the eastern terminus of the Blue Line) due to safety concerns about a pocket track just past Stadium-Armory. Silver Line service at Addison Road began on July 26, 2014.