English: A Road-rail vehicle is a self-propelled vehicle that can be legally used on both roads and rails. They are sometimes referred to as a High-low, Hy-rail or HiRail. They are normally converted rubber-tyred road vehicles that have additional steel wheels for running on rails. Because only one set of wheels would logically be used at a time, a pneumatic, or hydraulic system is employed to lower and raise the rail wheels.
(This summary was created using Commons SumItUp)
- For the automobiles permanently converted to railway use see Category:Car-based draisines.
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