Access way mesh: pedestrian segregation on Australian construction sites
The most common cause of pedestrian incidents on construction sites is not a single dramatic failure — it is the gradual erosion of the boundary between where pedestrians are supposed to be and where the work is happening. Workers take shortcuts. Delivery drivers park where the access way narrows. Temporary barriers get moved and not replaced. The protected pedestrian route slowly disappears.
Access way mesh is the physical marker that defines and maintains that boundary. It does not prevent a determined person from crossing it, but it makes the separation visible, consistent, and clearly intentional.
What the WHS Construction Code requires
The Safe Work Australia Model Code of Practice for Construction Work requires that pedestrian access to and through construction sites be clearly defined, adequately signed, and physically segregated from vehicular and plant traffic wherever reasonably practicable.
Specific requirements include:
- Defined access routes for all workers, visitors, and delivery personnel entering the site
- Physical separation between pedestrian routes and areas where mobile plant operates
- Signing at site entries identifying access routes and PPE requirements
- Overhead protection on access ways that pass beneath work at height
The specific form of the physical separation — whether a jersey barrier, a safety fence, or access way mesh — is not prescribed. The obligation is that the separation is clear, consistently maintained, and appropriate to the risk.
Where access way mesh is used
Access way mesh is a lighter-duty solution suited to defining pedestrian paths within a construction site rather than creating a structural barrier. Typical applications include:
- Marking pedestrian corridors through working areas — corridors that are generally free of plant traffic but cross through active work zones
- Delineating worker access to amenities, offices, and muster points from plant operating areas
- Temporary pedestrian access around a specific work operation (concrete pour, steel erection, crane lift) with a defined duration
- Internal site traffic management where the pedestrian and plant routes change as the project progresses
For applications involving active plant traffic on the other side of the barrier, or where the consequence of a pedestrian crossing the barrier would be immediate exposure to serious harm, a higher-rated physical barrier (temporary fencing, jersey barrier, or hoarding) is the appropriate specification rather than mesh alone.
Colour conventions
Safety mesh used for access way demarcation typically follows a loose colour convention in the Australian construction industry:
- Orange or red mesh — hazard demarcation, exclusion zones, and areas not for pedestrian access
- Green or yellow mesh — demarcation of areas that are accessible, permitted pedestrian routes, or lower-level hazard zones
This convention is not mandated by Australian Standards (unlike the colour coding for safety signs in AS/NZS 1319), but it is sufficiently consistent across the industry that workers recognise the colour intent. Confirm the colour convention in your site-specific traffic management plan.
Height and installation requirements
Access way mesh is typically installed at 900mm to 1200mm above the walking surface, which is the height range at which a moving person will encounter it before they have stepped into the hazard zone. Installation at this height is also consistent with the requirements for temporary pedestrian barriers in the Model Code.
Mesh should be tensioned between posts or attachment points at no more than 3-metre intervals. Sagging mesh at ground level can be stepped over without being consciously noticed — which defeats the purpose entirely.
Integration with the site traffic management plan
Access way mesh is one physical tool within the site's traffic management plan (TMP). The TMP documents:
- All routes for pedestrians, light vehicles, and plant
- Intersection management (give way rules, spotters required, blind spot controls)
- Signage requirements at each controlled point
- Responsibilities for maintaining barriers and signs
The mesh on the ground should reflect the TMP in the office. If the TMP has been revised as the project progresses but the physical mesh has not been updated, the system breaks down.
Frequently asked questions
Does access way mesh need to meet a specific standard? There is no single Australian Standard that prescribes the specifications for access way mesh as a product. The obligation is at the system level: the WHS Act and the Construction Code require that pedestrian and plant traffic be segregated. The mesh is the tool that implements that requirement. Ensure the mesh used is durable enough to remain in position for the expected duration of use.
Who is responsible for maintaining access way mesh on a multi-contractor site? The principal contractor is responsible for site-wide traffic management. Individual subcontractors are responsible for any temporary access way modifications they make within their work areas. Where a subcontractor moves or removes mesh to access their work area, they are responsible for reinstating it. This responsibility should be documented in the site safety plan and subcontractor agreements.
How is access way mesh different from exclusion zone mesh? Access way mesh marks a route that pedestrians are permitted to use. Exclusion zone mesh marks an area that pedestrians must not enter. The two meshes may use different colours to reflect this distinction, and exclusion zone mesh must be more clearly signed with hazard identification.
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