Abstract
This study presents speed measurement system using Light detection And Ranging (LIDAR) technology is successfully tested on moving railway cars. The system has multiple mounting capabilities that allow it to attach to various locations on the railcar. Using lasers to measure train speed off of each rail individually, the system determines curvature characteristics of the track based on known track geometry and speed differentials measured by the system. The LIDAR speed measurement system offers a non-contact form of measurement that eliminates noise and unwanted disturbances originating from contact sensors such as wheel-mounted encoders. The results of the study indicate that, with an ability to operate at speeds from 0.5mph and upwards of 100mph, the LIDAR system proves to be a highly versatile and precise measurement device useful in rail geometry measurement applications.
Published Version
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