Hi-Rail Plant Operations SWMS
Hi-rail vehicle operation on track — wheel deployment/retraction, on-tracking procedure, fellow worker exclusion zones, network operator approval.
SWMS variants reference your state’s WHS legislation. Instant download after payment.
Hi-rail plant operations involve road-registered vehicles fitted with retractable steel rail wheels that allow on-tracking and travel within the rail corridor for maintenance, inspection, and construction support tasks. The work sits at the intersection of road vehicle dynamics, rail traffic exposure, and frequently energised overhead line (OHL) environments, creating a multi-hazard profile that no generic plant or driving procedure adequately addresses. Under WHS Regulation 2025, hi-rail operation is High Risk Construction Work because it occurs in or adjacent to a road or railway corridor used by traffic and involves powered mobile plant operating near energised electrical installations. The Rail Safety National Law Act 2012 and ONRSR framework impose parallel duties on the rail transport operator and contracted PCBUs, while each network operator (TfNSW, ARTC, QR, MTM, V/Line) mandates specific on-tracking protocols, protection officer arrangements, and possession authorities. A documented SWMS is mandatory before any hi-rail unit enters the danger zone, and must be reviewed at every pre-start with the operator, protection officer, and fellow workers.
Hazards identified
7 hazards covered, sorted by priority.
Catastrophic crush injury or fatality to operator and ground crew; criminal prosecution under Rail Safety National Law
Electrocution, severe arc flash burns, cardiac arrest, and network-wide traction shutdown with notifiable incident reporting
Rollover crush injury, secondary collision with adjacent track traffic, and corridor closure exceeding 24 hours
Fatal crush injury; PCBU prosecution for failure to maintain safe separation between plant and workers on foot
Runaway plant collision with structures, workers, or following rail traffic causing multiple fatalities
Microsleep events leading to signal passed at danger, over-speed derailment, or failure to detect approaching traffic
Lumbar strain, crush injuries to hands and feet from heavy steel components requiring extended workers compensation claims
Control measures
Hierarchy-of-controls order: elimination → substitution → isolation → engineering → administrative → PPE.
- 1Elimination — Where feasible, complete works from adjacent road access or maintenance road, removing the need to on-track the hi-rail unit into the live rail corridor entirely.
- 2Elimination — Schedule all hi-rail movements within absolute possession or track occupancy authority so no rail traffic shares the work zone during the task.
- 3Substitution — Substitute road-based elevated work platforms or rail-mounted trolleys for hi-rail trucks where the task scope and reach permit safer alternatives.
- 4Engineering — Fit and verify operation of audible and visual on-tracking alarms, derailment detection, dead-man controls, and OHL proximity warning systems on every shift.
- 5Engineering — Apply mechanical wheel stops, scotch blocks, and parking brake interlocks at stabling points; verify rail wheel locking pins are fully engaged before travel.
- 6Engineering — Maintain documented OHL clearance envelopes using boom limiters and physical stops set below the minimum 600mm approach distance to live traction wires.
- 7Administrative — Obtain written network operator on-tracking authority, protection officer briefing, and possession documentation before any wheel deployment occurs.
- 8Administrative — Conduct documented pre-start with operator, protection officer, and ground crew using this SWMS, confirming exclusion zones, communications channels, and emergency protocols.
- 9Administrative — Enforce fatigue management with maximum 12-hour shifts, mandatory breaks every 2 hours, and competency verification against network operator hi-rail accreditation.
- 10PPE — Hi-vis day/night rail-spec garments to AS/NZS 4602.1, rated safety footwear, impact gloves, hard hat with chin strap, and arc-rated clothing where OHL exposure is credible.
Applicable Codes of Practice
Mandates a SWMS before commencing work in a rail corridor or near energised electrical installations, with stop-work obligations on non-compliance.
Imposes parallel duties on rail transport operators and contracted PCBUs for safety management systems, risk controls, and notifiable occurrence reporting on hi-rail operations.
Defines protection officer roles, lookout sighting distances, and on-tracking authority procedures directly applicable to hi-rail entry and exit from the corridor.
Specifies rail-spec hi-vis requirements for corridor visibility and minimum approach distances to 1500V DC and 25kV AC traction infrastructure.
High-Risk Construction Work triggered
Hi-rail units operate directly within the running line of railway corridors that, outside formal possession, carry passenger and freight rail traffic.
Boom, tipper, and crane attachments on hi-rail plant operate within proximity of 1500V DC and 25kV AC overhead traction lines along electrified corridors.
Hi-rail vehicles are powered mobile plant operating in shared spaces with ground workers, lookouts, and protection officers throughout deployment and travel.
The PCBU must consult workers, prepare and review the SWMS before work starts, and retain it for the project plus two years; penalties are substantial and indexed, with the current maximum following the prevailing WHS schedule.
Who this is for
- →Track maintenance contractors operating hi-rail fleets
- →Rail infrastructure project supervisors and protection officers
- →Plant operators accredited for TfNSW, ARTC, QR or MTM corridors
- →Signalling and OHL maintenance crews using hi-rail access
What you receive
- ✓Editable DOCX template — Microsoft Word compatible
- ✓State-specific WHS legislation schedule (NSW/VIC/QLD/SA/WA/TAS/NT/ACT)
- ✓Hazard register with risk ratings + hierarchy-of-control mapping
- ✓Worker sign-on register, pre-start checklist, and incident escalation flow
Worked example
On a Tuesday night possession of a suburban electrified corridor, a maintenance contractor is using a hi-rail tipper to deliver ballast to a turnout renewal site. At 21:30, the crew assembles at the nominated on-tracking location for the pre-start brief. The supervisor opens this SWMS on a ruggedised tablet and walks the operator, protection officer, and three ground crew through each hazard line. When discussing OHL contact, the operator confirms the tipper boom limiter is set and the protection officer notes the traction is isolated and earthed under permit, but the SWMS control still requires the 600mm physical exclusion to remain enforced in case the earth fails. Each worker signs on against the document. During on-tracking, a ground crew member notices the rear rail wheel locking pin has not fully seated — a hazard captured in the derailment row of the SWMS. Work stops, the SWMS is re-opened, the control is re-applied, and the pin is correctly engaged before travel resumes. At the 02:00 break, the supervisor reviews fatigue controls in the SWMS and rotates the operator with the qualified backup before resuming ballast delivery, with all amendments logged on the signed sheet.
Related legislation
- WHS Act 2011 (model)
- WHS Regulation 2025
- AS/NZS 3000 — Electrical installations