Track Geometry Development: UMTA Urban Rail Supporting Technology Program

Volpe National Transportation Systems Center, Technical Reference Centerhttps://doi.org/10.21949/15269081974PDFTech ReportRutyna, Fred J.John A. Volpe National Transportation Systems Center (U.S.)United States. Urban Mass Transportation AdministrationUnited States. Urban Mass Transportation AdministrationUnited StatesAlignmentCross sectionsGage (Rails)InspectionMaintenance of wayRailroad tracksStructural designDOT-TSC-UMTA-73-14Measurement of transit system track geometry parameters, under normal operating conditions, is essential for planning and conducting an effective maintenance program. The pertinent parameters are profile, gage, alignment, and cross level. Present methods of determining track conditions are inefficient and highly subjective. Several track geometry measurement methods have been investigated.138