Understanding ATO Compliance
Metrolinx’s ATO standard outlines strict safety measures for anyone working beside active rail lines. When equipment operates near open tracks, contractors must use control systems that prevent machines from fouling those tracks.
That’s where a Movement Limiting Device (MLD) comes in. An MLD is a control system designed to restrict how far a boom, arm, or attachment can move, ensuring it stays within a defined safe zone. These devices are a key part of any ATO-compliant safety system.
What Is a Movement Limiting Device for Rail Equipment?
A Movement Limiting Device for rail equipment—like the Railics MLD—monitors and controls the machine’s motion in real time. It can limit slew (rotation), height, reach, and even create virtual “no-go” zones.
The system constantly tracks machine position and stops movement before it breaches the safety boundary. For operators working close to live track, that means extra protection, fewer human-error risks, and compliance with Metrolinx-approved MLD requirements.
Features That Support ATO Compliance
The Railics MLD, distributed through H. Broer Equipment, offers key functions that help contractors meet safety standards, including:
● Automatic motion control – Limits boom height, slew, and reach to keep equipment inside the safe work zone.
● Virtual wall technology – Creates a programmable barrier that prevents encroachment on live track.
● Load and capacity monitoring – Combines with a Rated Capacity Limiter (RCL) for total machine control.
● Data logging – Tracks operator behaviour and movement for compliance reporting.
● Universal compatibility – Works with excavators, cranes, and hi-rail vehicles across multiple manufacturers.
These features make it not only a rail excavator movement limiter, but a complete rail safety compliance device for modern job sites.
Installing a Metrolinx-Approved MLD
Getting the right system installed and calibrated is essential for compliance. H. Broer Equipment provides MLD installation for rail contractors, including setup, calibration, and operator training.
Every machine must be configured to match the job site’s conditions—boom length, proximity to live track, and ATO work plan details. Proper installation ensures your rail equipment control system performs accurately and meets the approval standards laid out by Metrolinx.
Why It Matters
ATO compliance isn’t just about avoiding fines or shutdowns. It’s about protecting operators, maintaining uptime, and building trust with rail authorities. A Metrolinx-approved MLD helps contractors meet those goals while improving operational confidence on every project.
Get Started
If your fleet needs an upgrade to meet current ATO standards, the Railics MLD offers proven reliability, a clear operator interface, and full support through H. Broer Equipment.
Contact our team to learn more about movement limiting devices for rail equipment, installation options, and how to make your next rail project fully ATO-compliant.