Maintenance-of-Way (MOW)
Maintenance-of-Way refers to the department, workforce, and activities responsible for inspecting, repairing, and maintaining railroad track and infrastructure.
Maintenance-of-Way (MOW) is the railroad department responsible for the inspection, maintenance, repair, and rehabilitation of track structure, roadbed, bridges, culverts, signals, and associated infrastructure. MOW encompasses everything from routine tamping and surfacing runs to emergency derailment response and major capital tie and rail replacement programs. The workforce includes roadmasters, track supervisors, track inspectors, machine operators, and section crews — all operating under FRA Track Safety Standards (49 CFR Part 213), which define six track classes and the inspection frequency, speed limits, and geometry tolerances required for each. MOW work typically takes place during track windows — scheduled or unscheduled periods when train traffic is held clear of a work zone. All personnel working on or near the track must operate under the authority of a designated Roadway Worker In Charge (RWIC), who is responsible for issuing and releasing protection.
MOW operations are the backbone of railroad safety. Track geometry defects, broken rails, and degraded tie conditions are among the leading causes of derailments — and the FRA's inspection mandate exists precisely because infrastructure failures are not self-announcing. The challenge for MOW departments is documentation: when a track inspector identifies an exception, that observation needs to be recorded, located, and acted on within the timelines FRA prescribes. GPS-tagged video from maintenance-of-way camera systems mounted on hi-rail vehicles and inspection equipment creates a continuous, geographically indexed record of track condition — one that supplements visual inspection reports with actual footage reviewable from the office. When a defect leads to a slow order or a pull-out-of-service decision, that video record becomes the evidentiary foundation.
On a hi-rail inspection run, you're covering 20 or 30 miles of track and logging exceptions as you go — joint conditions, tie plates, cross-level issues, vegetation encroachment. Some of what you see is marginal; some of it needs an immediate slow order. The discipline is in the documentation: GPS mile-post, condition, disposition. A camera system tied to your GPS gives you a visual record of every foot of track you covered, timestamped and located — which matters when a defect you noted on Tuesday becomes a derailment site on Thursday and someone wants to know what the track looked like 48 hours before.
Solutions
- Maintenance-of-Way Camera Systems
GPS-tagged video recording for hi-rail vehicles and MOW equipment on inspection runs.
- High-Rail Vehicle Camera Systems
Camera systems purpose-built for hi-rail trucks performing track inspection with forward and downward track views.
- AI Track Inspection & Incident Detection
Automated anomaly detection layered on top of MOW camera footage to flag exceptions without manual review.
- Hi-Rail Vehicle
A hi-rail vehicle is a rubber-tired truck or SUV equipped with retractable steel rail wheels that allow it to operate on both road and railroad track.
- Roadmaster
A roadmaster is the field supervisor responsible for the maintenance, inspection, and regulatory compliance of track and infrastructure within an assigned territory.
- Roadway Worker In Charge (RWIC)
A Roadway Worker In Charge is the qualified individual responsible for establishing and maintaining on-track protection for a group of workers fouling the track or right-of-way.
- Track Inspector
A track inspector is an FRA-qualified railroad employee responsible for visually inspecting assigned track territory on a defined cycle to identify defects and ensure compliance with FRA Track Safety Standards.
- Geometry Car
A geometry car is a purpose-built, instrumented rail vehicle that measures track geometry — gauge, cross-level, surface, alignment, and curvature — with precision sensors to identify defects against FRA standards.
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