Rail Geometry

Rail geometry information is a mainstay of the railway industry. 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 clip and spike inspection, ballast inspection, cross tie inspection and others.

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.

Standard

49 CFR § 213.233 – Track inspections

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