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WheelScan is an in-track wheel profile measurement system designed to continuously assess the condition of passenger, freight and locomotive wheels at track speed. The system automatically captures, measures and stores the wear profile of all wheels passing over the measurement site. Worn wheels are flagged and reported electronically to vehicle and rail car maintenance organizations. Database, analysis and wear trending software tools are provided to facilitate precise planned maintenance and budgeting for asset replacement. Wheel condition data can also be overlaid on KLD ORIAN rail profile data to perform wheel rail interface analysis. The system utilizes standard communication protocols and can also be used in combination with other detectors. WheelScan installation is straightforward. The system simply requires replacement of single tie/sleeper and it has no negative affect on the track modulus. WheelScan is compatible with all railcar AEI tag systems and is suitable for remote mainline installations.