An automated railroad wheel profile inspection system designed to measure wheel profiles at operating speeds using a laser scanning technology was developed and trial tested in a bench-scale demonstration. A Transit IDEA product report was published in October 1995. In Stage 1, preliminary specifications and hardware design for the system, including layout and component specifications, were completed. Several laser sensors have been tested on actual railroad wheel segments to determine the overall feasibility of the proposed approach. A bench-scale inspection station system was designed, fabricated, and tested in the laboratory. In Stage 2, in-house trial tests of the system in simulated railroad conditions were performed and operational durability and reliability of the system examined. The cost-effectiveness was assessed and an operating design of the system for routine application by transit operators was developed.