Road Sweeper Operation SWMS

Road sweeper operation on construction sites and municipal contracts involves a heavy mobile plant unit fitted with rotating side brushes, a main pickup broom, vacuum suction, water-spray dust suppression and a hydraulically actuated hopper. Operators routinely work adjacent to live traffic, pedestrians, parked plant and overhead services while managing fugitive silica-bearing dust, hydraulic pressure systems and elevated hopper unloading. Because the work involves operation of powered mobile plant in proximity to traffic and the public, generates respirable crystalline silica dust, and includes work where loads can fall from height during hopper tipping, it meets multiple High Risk Construction Work triggers under WHS Regulation 2025 section 291. A Safe Work Method Statement is therefore mandatory before the task commences, must be developed in consultation with workers, and must be available for inspection at the workplace. This SWMS documents the hazards, the hierarchy of controls, and the supervisory checks required to operate a road sweeper compliantly across both private construction and council road environments.

Hazards identified

7 hazards covered, sorted by priority.

Control measures

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

1. 1Elimination — Where feasible, schedule sweeping outside live traffic hours and outside pedestrian peaks to remove the interaction hazard entirely from the task envelope.
2. 2Elimination — Pre-wet the surface with a separate water cart before sweeping to eliminate the respirable dust generation pathway at source rather than capturing it downstream.
3. 3Substitution — Substitute mechanical broom sweeping with a regenerative-air or full-vacuum sweeper unit that captures fines directly, reducing airborne silica fraction substantially.
4. 4Engineering — Maintain calibrated water-spray dust suppression at all brush heads and the suction inlet, with flow-fail alarm interlocked to brush rotation per manufacturer specification.
5. 5Engineering — Fit and verify ROPS/FOPS cabin, reverse camera, 360-degree proximity sensors and amber rotating beacon compliant with AS 2942 prior to each shift.
6. 6Engineering — Use a positive mechanical hopper prop or safety strut engaged before any worker enters the tipping zone, isolating hydraulic descent risk.
7. 7Administrative — Implement a Traffic Management Plan prepared under AS 1742.3 with certified TMA vehicle, signage, lane closures and stop/slow controllers for road works.
8. 8Administrative — Conduct daily pre-start inspection, document brush wear, hydraulic integrity and water tank level; record in the plant logbook before mobilisation.
9. 9PPE — Wear AS/NZS 4602.1 Class D/N high-visibility garments, AS/NZS 1337.1 safety eyewear, AS/NZS 1715/1716 P2 respirator during brush change and hopper cleanout.
10. 10PPE — Wear AS/NZS 2210.3 safety footwear, AS/NZS 2161.3 cut-resistant gloves for bristle handling, and AS/NZS 1270 Class 4 hearing protection in cabin and during unload.

Applicable Codes of Practice

High-Risk Construction Work triggered

Worked example

On a suburban arterial road resurfacing project, the sweeper operator arrives for a 5:00am pre-start brief led by the site supervisor. The crew opens this SWMS on a tablet and walks the seven listed hazards against today's conditions: live traffic resumes at 6:30am, the surface is dry milled asphalt with high silica fines, and the hopper must be tipped twice into a stockpile near the compound. The operator confirms the water-spray tank is full, brush wear is within tolerance, and the TMA vehicle is positioned per the AS 1742.3 traffic guidance scheme. Each worker signs onto the SWMS, noting the P2 respirator requirement during brush change. Mid-shift, wind picks up and visible dust escapes the suppression envelope. The operator stops, refers back to the engineering control row in the SWMS, increases spray flow and reduces brush rotation speed, then logs the adjustment as a dynamic risk control in the comments field. Before the first hopper tip, the dogman engages the mechanical hopper prop and confirms the exclusion zone is clear, exactly as the controls section directs. At shift end, the signed SWMS, pre-start checklist and exposure observations are uploaded to the project HSE register, demonstrating active use of the document rather than tick-and-flick compliance.

Related legislation

• WHS Act 2011 (model)
• WHS Regulation 2025
• AS 2294 — Earth-moving machinery protective structures

Frequently asked questions