MxV Rail has been partnering with Texas A&M University (TAMU) to develop a state-of-the-art track buckling model called the Association of American Railroads “(AAR)/TAMU Track Buckle Model.” Previous publications1,2 introduced the base version of the model that simulates buckles in scenarios where no vehicle is present.2 Recent improvements to the model have added the vehicle influence of vertical load and uplift. Previously developed buckling models (e.g., CWR-Safe) have shown that uplift can reduce track buckle strength.3 Incorporating other vehicle effects, such as longitudinal and lateral loads, vibrations, and additional dynamic aspects require future development. This Technology Digest introduces vehicle-induced track uplift and demonstrates its potential influence over a range of vehicle types and track conditions. Track Uplift Track uplift is the process in which the vertical load from the vehicle causes the rail to bend such that the track can “uplift;” thereby creating potential weak spots that can make the…