Rail Geometry

Measuring track geometry is fundamental to understanding track health. Gauge, alignment and cross-level measurements are used to monitor and model track safety under varying load conditions, curvatures and gauge widths.

While rail geometry measurements typically require a separate dedicated inspection system, Pavemetrics® LRAIL™ is able to perform these tasks simultaneous with other important tasks such as the grading, fastener inspection, ballast profiling, turnout inspection and more.

The LRAIL uses Artificial Intelligence to first correct 3D scans for measurement vehicle motion using built-in IMUs. Then 3D data is analyzed in order to detect rails, locate the top of rails for cross-level measurements and the gauge measurement point (5/8″ below top of rail) for both gauge and rail alignment measurements. Chord lengths are customizable in order to match the customer's specific standard.