Sunday, April 24, 2011

Road-Rail Vehicles

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 Hy-rail or HiRail. They are normally converted rubber-tired 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

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