Universal Mobility, Inc. (UMI) manufactured two minirail systems in California, the Cal Expo Monorail in 1968 and Metro in 1971. Metro, with a $1.8 million cost and capacity of 4,682 passengers per hour, operated until 2001 before being sold to Hersheypark. The Cal Expo Monorail was constructed for the California Exposition and had a capacity of 4,000 passengers per hour.
This series explores the intertwined histories of Hersheypark and Magic Mountain, both influenced by R. Duell & Associates. Hersheypark, revamped in 1969, shares a monorail system with Magic Mountain, which opened in 1971. In 2011, Magic Mountain sold its trains to Hersheypark, but they have remained unused since.
Universal Mobility, Incorporated (UMI) operated from 1967 to 1989, constructing several notable monorail systems primarily in theme parks and exposition sites. Founded by Hank Pater, UMI faced financial difficulties, leading to its acquisition by Bombardier in 1989.
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