In addition to the bogie performance monitoring capabilities of TBOGI, TBOGI-HD also detects laterally unstable bogies, a condition also referred to as bogie hunting.
Contrary to other technologies that simply supply an arbitrary index, the TBOGI-HD system provides data in physical units (i.e. actual millimeter displacement). TBOGI-HD not only detects severely hunting bogies, but also low-level instability incipient to hunting.
Like the TBOGI system, TBOGI-HD systems are installed on tangent track and are simple to install and maintain. TBOGI-HD systems have a demonstrated high reliability record and low cost of ownership.