Man Down and Lone Worker Safety: What Australian Businesses Need to Know

Picture a maintenance worker on a night shift, alone, checking an alarm. On the way there they slip, fall and knock themselves out. No one saw it. No one is expecting a call. How long before anyone realises something is wrong? For a growing number of Australian operations, the answer is built into the radio on the worker's belt.

Lone and isolated work is part of everyday life across construction, mining, utilities, security, facilities management and dozens of other industries. It also carries real risk. When a worker is on their own, an injury that would be minor with a colleague nearby can become serious simply because help is delayed. Man Down and Lone Worker features on professional two-way radios exist to close that gap.

What is Man Down?

Man Down is a safety feature built into many professional digital radios. The radio contains motion and tilt sensors that monitor how it is being carried. If it detects a fall, a sudden impact or a sustained lack of movement, it assumes the worker may be in trouble and steps in.

The sequence is designed to avoid false alarms while still acting fast:

• The radio detects a horizontal position or no movement beyond a set period.
• It sounds a pre-alert, giving the worker a few seconds to cancel if they are fine.
• If there is no response, it automatically transmits an emergency alert to supervisors or a dispatch position.
• Audible and visual alarms on the radio help responders locate the worker quickly.

The key point is that Man Down works even when the worker cannot. An unconscious or trapped person cannot press a button or make a call. The radio does it for them.

How Lone Worker differs

Man Down responds to movement. Lone Worker responds to inactivity. Where a worker is moving around normally but still isolated, the radio prompts them to check in at set intervals, usually with a simple button press. If they fail to check in within the window, the radio raises an emergency alert on their behalf.

The two features complement each other. Many operations run both: Man Down to catch a fall, Lone Worker to catch a worker who has gone quiet for too long. Modern radios add GNSS location on top, so once an alert is raised, responders know where to go rather than where to start looking.

The duty behind it: what Australian WHS law expects

There is no single piece of legislation in Australia that names Man Down as a legal requirement. What the law does is set a clear duty, and that duty is what makes features like Man Down increasingly hard to do without.

Under the Work Health and Safety Act 2011, a person conducting a business or undertaking, the PCBU, must ensure the health and safety of workers so far as is reasonably practicable. Regulation 48 of the model WHS Regulations specifically addresses remote or isolated work, and the Managing the Work Environment and Facilities Code of Practice expands on it. The common thread is that employers must provide effective communication with isolated workers and monitor their wellbeing.

Safe Work Australia treats remote or isolated work as both a physical and a psychosocial hazard. Western Australia harmonised with the model framework in 2022, so employers across the country now work under broadly similar obligations, with mining and petroleum carrying additional sector-specific requirements.

In practice, that duty means an employer has to ask a simple question: if one of our isolated workers was injured and could not call for help, how would we know? For many businesses, a radio with Man Down and Lone Worker is the most practical, reliable answer, and it is why these features are moving from optional extras to standard fleet requirements.

Why it is showing up in procurement specs

The clearest sign of this shift is in tenders and procurement. More and more, when a head contractor or site operator goes to market for a radio fleet, Man Down and Lone Worker are written into the specification as mandatory. Suppliers who cannot meet that requirement are simply out of the running.

There are a few reasons this is accelerating:

• Principal contractors push their WHS obligations down to subcontractors, who then need compliant equipment to win work.
• Insurers and auditors increasingly expect to see active safety monitoring for isolated work.
• The technology is now built into mainstream professional radios, so there is no longer a cost or complexity barrier to including it.

Which industries benefit most

Any operation with workers who spend time alone or in hazardous conditions should be looking at Man Down. The strongest cases include:

• Mining and oil and gas: isolated work in hazardous areas, where an intrinsically safe radio with Fall Alert is often a baseline requirement.
• Construction: workers spread across large sites, after-hours trades and confined-space tasks.
• Utilities and energy: field technicians and lineworkers responding to faults alone in remote locations.
• Security: officers patrolling alone, often at night and in unpredictable situations.
• Facilities management: maintenance crews working across large or multi-building sites.
• Manufacturing: workers around heavy plant where a fall may not be seen or heard.

How it works on a modern radio

To see how this comes together in practice, the Motorola MOTOTRBO R7 is a good example. It supports Man Down and Lone Worker, carries a dedicated emergency button and includes GNSS for locating a worker indoors or out. The escalation timing, alert tones and who receives the alert can all be configured to match your site procedures and dispatch setup.

For hazardous areas, the intrinsically safe R7Ex carries the same Fall Alert and Lone Worker capability with ATEX and IECEx certification for potentially explosive Zone 1 and Zone 2 environments, which is what makes it suitable for mining, refineries and chemical work.

Setting it up properly

Man Down is only as good as the setup behind it. Buying radios with the feature is the easy part. Making it work in the real world takes a few practical steps:

• Start with a risk assessment. Identify where and when workers are isolated, and what could go wrong. This is also your WHS compliance evidence.
• Configure the escalation. Set sensible timers and decide who receives the alert and how they are expected to respond.
• Define the response. An alert that no one is watching for is useless. Make sure there is always someone monitoring and a clear procedure to follow.
• Train your people. Workers need to know how the feature behaves, how to cancel a false alarm and what happens if they do not.
• Test it regularly. Run drills so you know the chain works end to end before you rely on it.

This is where working with an experienced radio supplier pays off. The right setup is specific to your site, your team and the way your crews actually work, not a one-size-fits-all default.

This article is general information only and is not legal or WHS compliance advice. Your obligations depend on your industry, location and the nature of the work. Always confirm current requirements with the relevant state or territory authority or a qualified WHS professional.