Construction workers in hi-vis vests and hard hats on an active urban building site — calm non-incident scene

Assembly management without the walls.

GPS-based evacuation and accountability for sites that don’t have floors.

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Why field-site emergency management is its own problem

Not a building

No fixed floors, rooms or doors — a site is a polygon on a map, not a building.

Kilometre-scale footprint

Workers are distributed across a large GPS footprint, sometimes kilometres apart.

Multiple Assembly Points

Assembly Points may be at multiple locations depending on the emergency and wind direction.

High WHS exposure

Mine sites, construction sites and remote work all have WHS exposure well above office norms.

Unstable roster

Contractors, subcontractors and visitors rotate through daily — the roster is never stable.

Lone-worker exposure

Lone-worker exposure is significant: inspections, maintenance runs, security patrols.

Built around the standards that matter on site

WHS construction regulations, state mine safety laws and principal contractor duties sit above AS 3745 on a field site. EMAction’s field-site mode is shaped by all four.

AS 3745

Planning for Emergencies in Facilities

Applies in principle; the site-type setting adapts the structure to field operations.

WHS Act & Regulations

Work Health & Safety

Extremely high exposure in construction, mining and civil. Demonstrable emergency response is central to safety case and safety management system requirements.

Mine safety regulators

State Mine Safety Laws

State-specific mine safety laws (NSW Resources Regulator, Qld Resources Safety & Health, and equivalents) impose incident management obligations beyond WHS.

Principal contractor duties

WHS Construction Regulations

Under state WHS construction regulations, the principal contractor carries explicit emergency planning responsibilities.

The features that matter most here

GPS-based site definition

Sites are geofences on a map, not buildings with floors. Site radius is configurable per tenant — so a 40-hectare mine site, a linear rail corridor or a multi-kilometre civil project all define cleanly. Workers are placed against this geofence rather than a floor plan.

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Live GPS mapping

Workers with GPS enabled appear on the live map in real time. The Site Supervisor can direct assembly movement by visible cluster — no radio triangulation, no paper assembly list. Clustered markers, street and satellite views make the site legible under pressure.

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Worker check-ins by zone

Structured dropdown listing Assembly Points and the Safety Officer’s default zones. Four statuses — Safe, En Route, Need Help, Danger. A QR code at every Assembly Point pre-fills the location; one tap confirms.

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Lone Worker addon

Core use case for field operations: inspection rounds, overnight security patrols, remote monitoring. Full session recording, countdown timer with I’m OK and Send Help, live GPS on escalation and the Hide Screen feature (triple-tap to reveal) for hostile encounters.

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Quick Response panel for Safety Officers

Thumb-sized buttons that work with work gloves on in the sun. IN POSITION, ALL CLEAR, LAST TO LEAVE, NEED HELP — the four buttons a Safety Officer needs during an incident. No training menu, no deep UI.

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SMS fallback

Many field sites have patchy data coverage — SMS remains the reliable comms channel. Twilio-backed broadcasts and targeted messages fall through to SMS automatically; inbound replies log to the incident timeline with sender and timestamp.

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Photo capture

Document hazards directly to the incident timeline. A Safety Officer takes a photo, adds a caption, and it’s tagged and timestamped against the incident. The stakeholder summary later references the attached media so mandatory notifications and post-incident reviews have visual evidence attached.

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Haul road rollover

A vehicle rolls on a haul road at a mine site. A Safety Officer nearby scans the QR code at the nearest Assembly Point and taps Report Incident → Motor Vehicle Accident → High severity.

The Site Supervisor activates the incident and broadcasts “Prepare to Leave” to all Safety Officers across the pit. GPS positions of every worker with a phone are plotted on the live map.

The AI insights panel flags that four workers in the adjacent blast zone have not checked in, and a second Safety Officer confirms they are out of radio range. The Site Supervisor dispatches a runner using the map.

All workers are accounted for within nine minutes. The stakeholder email summary is drafted for the site manager, mine safety regulator liaison and principal contractor — ready for the mandatory notification.

If your ‘building’ is a 40-hectare site, EMAction’s GPS-based field mode is built for you.

Book a walkthrough focused on your site’s geofence, Assembly Points, Safety Officer roster and lone-worker exposure.

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