The Deployable Gage Restraint Measurement System (DGRMS) is the rail industry’s preferred method to measure gage restraint at high speeds from a rail-bound vehicle. The DGRMS features a hydraulically actuated split axle that applies known vertical and lateral loads into the rails allowing for measurements of loaded and unloaded gage at high survey speeds.
The DGRMS identifies locations of weakened tie and fastener support of holding gage (gauge). As gage widening derailments are the most common type of track geometry-caused derailments, the DGRMS is a key tool for any railway to prevent these types of derailments.
Measurements During Winter Conditions
The DGRMS has the unique ability to still be able to assess tie, fastener, and gage conditions even when the track is covered in snow. This has proven invaluable capability for railways operating in heavy winter conditions.
Key Features of the DGRMS
- Measures the ability for ties (sleepers) and fasteners to hold gage (gauge)
- Detects areas of weak track that can cause a gage widening derailment
- Additionally can detect areas of concrete tie rail base deterioration that can induce safety risk rail cant (rail inclination)