A box track is a track type that uses a box-shaped spine. All roller coasters built by Bolliger & Mabillard have a box track.
Old Intamin roller coasters, such as Flashback at Six Flags Magic Mountain and stand-up coaster Cobra at La Ronde also use box-track. This is because the founders of Bolliger & Mabillard used to work for Intamin.
Single Rail Track
A single rail track uses one primary guide rail to carry along a car versus the traditional two-rail configuration
A skeleton track typically uses a square-shaped or triangle-shaped skeletal framework as the track spine. This kind of track is typically found on Intamin coasters.
IBox track is a pair of I-shaped steel beams that is used exclusively by Rocky Mountain Construction hybrid coasters, like Steel Vengeance. The trains run on the upper lip of the I-shape, which keeps them from flying off.
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