Track Geometry Measurement System

Final report; June 1978-Oct. 1978.PDFTech ReportDOT-TSC-FRA-80-25DOT-TSC-1367Railroad tracksStatic and dynamic testsStandardsData collectionMeasuring instrumentsRailroad safetyDefectsDetection and identificationUnited StatesUnited States. Federal Railroad AdministrationHowerter, Edward D.John A. Volpe National Transportation Systems Center, (U.S.)ENSCOUnited States. Federal Railroad Administration. Office of Research and DevelopmentAGR-INFRASTRUCTURE-RailroadsNTL-RAIL TRANSPORTATION-Rail SafetyNTL-RAIL TRANSPORTATION-Rail Economics and FinanceNTL-SAFETY AND SECURITY-Rail SafetyNTL-SAFETY AND SECURITY-SAFETY AND SECURITYVolpe National Transportation Systems Center, Technical Reference CenterThis report contains a summary of the results of the test program that was conducted to validate the TGMS under various static and dynamic conditions. The TGMS has the capability to measure or derive gage, crosslevel (superelevation), warp (twist), curvature, maximum operating speeds for curves, vehicle speed and elapsed distance at speeds from near 0 to 30 mph. The TGMS is equipped with an automatic location detection system to accurately reference detected track geometry exceptions to permanent fixtures of the track roadbed. The track geometry measurements are compared to the Federal Railroad Administration Track Safety Standards and all detected exceptions are reported in real time by onboard digital computer