Rail Possession Working SWMS

Rail possession working covers the planned, time-bound occupation of a rail corridor or section of track under formal network rules so that engineering, maintenance, renewal or construction work can be undertaken safely with trains excluded or controlled. The work is governed by the Rail Safety National Law Act 2012, the ONRSR safety framework and the operating procedures of the relevant network operator (TfNSW, ARTC, QR, MTM or V/Line), overlaid on the WHS Regulation 2025 duties of the PCBU. A SWMS is mandatory because possession working involves multiple High Risk Construction Work categories — work adjacent to a road or railway traffic corridor, work near energised overhead traction, and the use of powered mobile plant such as hi-rail vehicles. Roles including the Possession Protection Officer (PPO), T2/T3 Protection Officer, Handsignaller and Worksite Protection Officer must be clearly assigned, briefed and documented, and the work pack must be opened, controlled and closed in accordance with network rules. Without a documented SWMS that integrates these protection arrangements, the PCBU cannot demonstrate compliance with WHS Regulation 2025 s291 or with rail safety worker competency obligations.

Hazards identified

7 hazards covered, sorted by priority.

Control measures

Hierarchy-of-controls order: elimination → substitution → isolation → engineering → administrative → PPE.

1. 1Elimination — Where reconfiguration allows, schedule the work into a full corridor closure (absolute possession) so no live rail traffic exists on any adjacent line during the work window.
2. 2Elimination — Remove the need for hi-rail on-tracking at risk locations by relocating access points to engineered level crossings with sighting distances compliant with network operator standards.
3. 3Substitution — Substitute manual handsignaller protection with electronic Track Occupancy Authority systems or Absolute Signal Blocking where the network operator permits, reducing reliance on verbal protocols.
4. 4Substitution — Replace diesel hi-rail with battery-electric or low-emission units in tunnels and cuttings to substitute exhaust and noise hazards affecting protection communications.
5. 5Engineering — Install physical demarcation between adjacent open lines and the worksite using rigid barriers, audible warning systems (TPWS/ATWS) and lookout-operated horns compliant with network rules.
6. 6Engineering — Isolate and earth overhead traction equipment via permit-to-work with visible isolation, short-circuit straps and confirmation testing before any work within the danger zone commences.
7. 7Administrative — Issue and brief a documented work pack containing possession diagrams, PPO/T2 appointments, hand-back times and emergency protocols; confirm rail safety worker competencies before sign-on.
8. 8Administrative — Conduct structured pre-start using this SWMS, fatigue self-assessment, radio channel confirmation and rehearsed emergency egress route with nominated place of safety for each work front.
9. 9PPE — Mandatory high-visibility day/night rail-spec garments to AS/NZS 4602.1, safety footwear AS/NZS 2210.3, hard hat, impact eyewear, hearing protection and arc-rated clothing where OHL exposure exists.
10. 10PPE — Personal radios with spare batteries, whistle, torch and identification of PPO/T2 role via coloured armband or vest insignia as required by network operator rule books.

Applicable Codes of Practice

High-Risk Construction Work triggered

Worked example

On a Saturday night absolute possession of a suburban down line for ballast undercutting, the Possession Protection Officer convenes a pre-start brief at the access road level crossing. He opens the work pack, distributes this SWMS to twelve rail safety workers including the T2 Protector, two handsignallers, the hi-rail excavator operator and the undercutter crew. Each worker reads the seven listed hazards and signs on, confirming current AS 7470 competencies and a negative D&A result. The PPO walks through control 6 — confirming the overhead traction isolation permit, visible isolators and earth straps already in place — and control 8, nominating UHF channel 14 as the protection channel and the truck cab as the place of safety. During hi-rail on-tracking at 22:15 the operator hesitates because the access ramp is wet; referring back to the SWMS control measure on derailment, the PPO halts the movement, deploys timber packers and re-attempts under direct supervision. At 02:40 a worker reports fatigue; the PPO applies the administrative fatigue control, rotates him out and documents the change on the SWMS amendment register. At hand-back, the PPO walks the possession limits, confirms all plant and personnel are clear, closes the work pack and notifies network control — the SWMS sign-off page captures the time and outcome for the safety management system record.

Related legislation

• WHS Act 2011 (model)
• WHS Regulation 2025
• AS/NZS 3000 — Electrical installations

Frequently asked questions