Lone Worker

A Lone Worker is a person who works without direct supervision or without another person nearby who can provide immediate assistance.

In two-way radio operations, lone-worker systems can provide additional communication and safety features to help organisations maintain contact with employees working alone or in isolated locations.

Lone-worker functionality can be built into compatible professional radios and may include features such as timed check-ins, inactivity alerts and emergency alarms.

What is a lone worker?

A lone worker may work:

• Alone in a building
• At a remote site
• On a night shift
• In a vehicle
• At a customer’s premises
• In a warehouse
• On a construction site
• In a utility or maintenance environment
• In a security role

Working alone does not necessarily mean that the worker is in danger. However, if an incident occurs, there may be nobody nearby to provide immediate assistance.

Lone-worker radio systems

A professional two-way radio can provide a communication link between a lone worker and a control room, supervisor or other members of the organisation.

A typical arrangement may be:

Lone Worker → Two-Way Radio → Radio NetworkA Network is a connected system of radios, equipment and infrastructure that allows users to communicate across a defined area. Radio networks can range from simple radio-to-radio systems to large multi-site networks. → Control Room

The radio can provide normal voice communication as well as dedicated safety functions where supported.

Lone-worker function

A compatible radio may have a dedicated Lone Worker function.

This can require the user to periodically acknowledge a prompt from the radio.

For example:

Radio prompt → Worker responds → Timer resets

If the worker does not respond within the configured period, the radio can initiate an alert.

The exact behaviour depends on the radio and system configuration.

Lone-worker timer

A lone-worker system can use a timer to monitor whether the user has acknowledged a safety prompt.

The timer may be configured according to the organisation’s procedures.

If the worker fails to respond, the system can potentially trigger an emergency condition.

The appropriate timing depends on the nature of the work and the associated risk assessment.

Lone-worker alert

If the worker does not respond to a lone-worker prompt, the radio can generate an alert.

Depending on the system, this may:

• Produce an audible warning
• Send an alert to another radio
• Notify a dispatcher
• Trigger an emergency transmissionTransmission is the process of sending voice, data or signalling from a radio using a radio-frequency signal to another radio, repeater or communication system.
• Provide the worker’s location where GPS is available

The precise functionality varies between radio manufacturers and systems.

Lone-worker emergency button

A radio may also have a dedicated Emergency ButtonAn Emergency Button is a dedicated two-way radio control that allows users to quickly send an emergency alert to a dispatcher, control room or authorised radio users..

The worker can use this to manually raise an emergency alert rather than waiting for the lone-worker timer to expire.

This provides a direct way of requesting assistance when the worker is able to operate the radio.

Lone worker and Emergency Alarm

An Emergency AlarmAn Emergency Alarm allows a two-way radio user to quickly alert a dispatcher, control room or other authorised users that assistance may be required. can alert other users or a control room that assistance may be required.

The alarm can be configured to provide an audible or visual indication on the radio or to generate an alert within a dispatch system.

Lone worker and Man-Down

Some professional radios provide Man-Down functionality.

Man-down systems can detect certain conditions, such as the radio being held at an unusual angle or remaining stationary for a configured period.

If the radio detects a possible problem, it can issue a warning before potentially raising an alert.

Man-down functionality is not available on every radio and should not be treated as a substitute for an appropriate lone-worker risk assessment.

Lone worker and GPS

GPS (Global Positioning System)GPS is a satellite-based positioning system that allows compatible two-way radios to determine their location. GPS data can support tracking, dispatch, fleet management and Geo-Fencing. can provide location information for compatible radios.

When integrated with a lone-worker system, GPS can potentially allow a control room or dispatcher to see the approximate location associated with an alert.

For example:

Emergency alert → Radio location → Dispatcher

GPS accuracy can vary depending on the environment.

Lone worker and indoor locations

GPS can be less effective inside buildingsAn antenna transmits and receives radio-frequency signals, allowing a two-way radio to communicate. Antenna type, frequency, height and location can all affect radio performance and coverage., underground areas and locations where satellite signals are obstructed.

For indoor lone-worker applications, alternative or additional location technologies may be required depending on the environment.

Lone worker and radio coverage

Reliable radio coverageRadio Coverage is the geographical area in which a two-way radio system can provide reliable communication. Coverage depends on the radios, antennas, frequency, terrain, buildings and system infrastructure. is an important consideration for lone-worker applications.

A worker operating in a Dead SpotA Dead Spot is an area where two-way radio communication is weak, unreliable or unavailable. Dead spots can be caused by buildings, terrain, distance, interference or inadequate radio coverage. may be unable to communicate with the control room or transmit an emergency alert.

Coverage should therefore be assessed across the areas where lone workers are expected to operate.

Lone worker and repeaters

A RepeaterA Repeater receives a two-way radio transmission and retransmits it, usually from an elevated location, to extend the coverage and reliability of a radio communication system. can extend radio coverage across a larger area.

This can be particularly useful when lone workers operate across:

• Large buildings
• Industrial sites
• Rural areas
• Construction sites
• Multiple buildings

The repeater should be positioned and configured to provide suitable coverage for the working environment.

Lone worker and licensed radio

A Licensed RadioA Licensed Radio is a two-way radio operated under an appropriate radio licence. Licensed systems can provide greater control over frequencies, coverage and infrastructure than licence-free radio services such as PMR446. system can provide additional options for lone-worker communication.

A professionally designed licensed system can incorporate:

• Dedicated frequencies
• Repeaters
• Emergency functions
• GPS
• Dispatch
• Group calling
• Individual calling

The appropriate system depends on the operating environment and risk requirements.

Lone worker and licence-free radio

Licence-free radios such as PMR446 can provide basic voice communication for short-range operations.

However, organisations should carefully consider whether the coverage, reliability and emergency functionality are appropriate for lone-worker applications.

Where communication is safety-critical, a professionally designed system may be more appropriate.

Lone worker and dispatch

A Dispatch system can provide centralised monitoring of radio users.

A dispatcher may be able to:

• Receive emergency alerts
• Communicate with the worker
• View GPS information
• Identify the radio user
• Record the incident
• Coordinate assistance

The exact capabilities depend on the dispatch platform.

Lone worker and Cloud Dispatch

Cloud DispatchCloud Dispatch is a cloud-based radio management and communication system that allows authorised dispatchers to communicate with, monitor and manage two-way radio users through an internet-connected platform. can allow authorised personnel to manage radio communications and alerts through a cloud-based platform.

Depending on the system, a dispatcher may be able to see:

• Radio users
• Emergency alerts
• GPS locations
• Communication groups
• Status information

Cloud connectivity means the system’s performance also depends on the underlying network connection.

Lone worker and emergency calls

An Emergency CallAn Emergency Call is a priority two-way radio function that allows a user to quickly request assistance and, on supported systems, establish an urgent voice communication with a dispatcher or control room. can provide a direct communication path to a designated person, group or control room.

This can allow a lone worker to communicate the nature of an incident when they are able to speak.

An emergency alarm may also be used where the worker cannot provide a full verbal explanation.

Lone worker and priority communications

Emergency communications can be configured to take priority over normal radio traffic on some professional systems.

This can help ensure that an emergency alert receives attention when other users are communicating.

The exact priority behaviour depends on the radio systemA Radio System is a complete communication solution comprising two-way radios and, where required, equipment such as repeaters, antennas, base stations, mobile radios and network infrastructure..

Lone worker and group calls

Lone workers can remain part of a Call GroupA Call Group is a predefined group of two-way radio users who can communicate with each other through a shared channel or talkgroup without transmitting to every radio on the system. or talkgroup for normal operational communication.

This allows colleagues or supervisors to communicate with the worker without requiring an individual call.

Emergency functions can operate separately from normal group communication where supported.

Lone worker and individual calls

An individual call can allow a supervisor or control-room operator to communicate directly with a particular lone worker.

This can be useful for:

• Welfare checks
• Job instructions
• Status updates
• Emergency response

Lone worker and check-ins

Organisations may use scheduled check-ins as part of their lone-worker procedures.

A worker may be required to confirm that they are safe at specified intervals.

This can be performed manually or through a radio’s built-in lone-worker function where supported.

Lone worker and job tracking

Job TrackingJob Tracking is the process of monitoring the progress, status and, where supported, location of a job or field worker from assignment through to completion, often using GPS, radio and dispatch systems. can provide additional information about a lone worker’s assigned task.

For example:

Job assigned → Worker travels to site → Job started → Work completed

Where GPS is available, the organisation may also be able to associate location information with the job.

Lone worker and Job Tickets

A Job TicketA Job Ticket is a record of a specific task or work assignment. In radio operations, it can be used alongside dispatch and two-way communications to assign, manage and record field work. can identify the task assigned to a lone worker.

This can provide useful operational context if an emergency alert is raised.

For example:

Job Ticket → Worker → Location → Emergency Alert

The exact level of integration depends on the software system.

Lone worker and incident management

Incident ManagementIncident Management is the process of coordinating people, communications and resources during an incident. Two-way radios can provide rapid communication between teams, control rooms and responders. can be used to record and coordinate a response to a lone-worker alert.

A typical workflow might be:

Alert → Incident created → Worker contacted → Assistance arranged → Incident resolved

This can provide a record of how the incident was handled.

Lone worker and call recording

Call RecordingCall Recording is a two-way radio feature or system function that captures and stores radio communications for later playback, review, incident investigation or record keeping. can provide a record of radio communications associated with a lone-worker incident where recording is enabled.

This can assist with incident review and operational records.

Organisations should ensure that any recording is carried out appropriately and in accordance with applicable requirements.

Lone worker and encryption

Where confidential information may be communicated, compatible professional radio systems can provide EncryptionEncryption protects two-way radio communications by converting voice or data into a secure form that can only be understood by authorised radios with the correct encryption capability and keys..

Encryption protects the content of communications but does not itself provide lone-worker protection.

Safety features and communication security are separate functions.

Lone worker and Bluetooth

Some radios support Bluetooth®Bluetooth® is a short-range wireless technology used with compatible two-way radios to connect accessories such as headsets, earpieces and microphones without a physical cable. accessories such as wireless headsets.

This can allow a worker to operate the radio without handling it continuously.

Bluetooth availability depends on the radio model and accessory.

Lone worker and hands-free operation

Hands-Free OperationHands-Free Operation allows two-way radio users to communicate without holding the radio or continuously pressing its PTT button, using features such as VOX, headsets or remote PTT controls. can be useful when workers need to keep their hands available for their primary task.

Compatible radios and accessories may support voice-activated or remote operation.

Hands-free operation should be configured carefully so that important radio communications remain audible and reliable.

Lone worker and intrinsically safe radios

Lone workers operating in hazardous environments may require an Intrinsically Safe RadioAn Intrinsically Safe Radio is a two-way radio designed and certified for use in specified hazardous areas where flammable gases, vapours or combustible dust could create a risk of explosion..

For example, workers operating in areas where flammable gases, vapours or dust may be present may require specifically certified equipment.

The radio, battery and accessories must be appropriate for the hazardous environment and certification requirements.

Lone worker and ATEX

Where an environment falls within the scope of ATEX requirements, the radio equipment must have the appropriate certification.

A normal professional radio should not be assumed to be suitable for use in a hazardous area simply because it is rugged or waterproof.

Lone worker and battery life

A lone-worker radio must have sufficient battery capacity for the worker’s expected shift.

A depleted battery can prevent normal communication and safety functions from operating.

Battery management should therefore form part of the overall lone-worker procedure.

Lone worker and lithium-ion batteries

Modern professional radios commonly use Lithium-Ion Batteries.

Battery capacity, operating time and charging arrangements should be considered when radios are being used for long shifts or remote work.

Spare batteries or charging facilities may be appropriate for extended operations.

Lone worker and radio hire

Lone-worker capable radios can be supplied as part of Radio HireRadio Hire is the temporary rental of two-way radios and related communication equipment for events, projects and operational requirements, providing professional communication without purchasing the equipment. arrangements for temporary operations.

Potential applications include:

• Security
• Construction
• Events
• Facilities management
• Maintenance
• Temporary sites

Before hiring equipment for lone-worker use, the organisation should confirm that the radio’s safety features and coverage are appropriate for the specific operation.

Lone worker and security

Security personnel may work alone during:

• Night shifts
• Patrols
• Site inspections
• Alarm responses
• Remote guarding

A radio with lone-worker and emergency functions can provide an additional communication and alerting mechanism.

Lone worker and construction

Construction workers may operate alone in partially completed buildings, remote areas or during out-of-hours work.

A suitable radio system can provide communication with site management and other workers.

Coverage should be tested throughout the areas where lone working takes place.

Lone worker and facilities management

Maintenance engineers and facilities staff may work alone in plant rooms, buildings or remote areas.

A radio system can provide communication with a control room or other members of the facilities team.

Lone-worker functionality can provide an additional layer of monitoring.

Lone worker and utilities

Utility workers may operate alone over large geographical areas.

Licensed radio systems with GPS, emergency alerts and suitable coverage can help maintain communication between field workers and operational control.

Lone worker and transport

Drivers and mobile workers may spend significant periods working alone.

Two-way radio can provide communication with a control centre, while compatible GPS and emergency features can provide additional operational information.

Lone worker and agriculture

Agricultural workers can operate alone across large farms and remote areas.

Coverage can be challenging in rural environments, so radio system design should consider:

• Terrain
• Buildings
• Distance
• Vegetation
• Radio infrastructureRadio infrastructure is the equipment and supporting systems behind a professional two-way radio network, including repeaters, antennas, base stations, network connections, power systems and dispatch equipment.

A repeater may be required where direct radio coverage is insufficient.

Lone worker and emergency response

A lone-worker system is designed to help raise an alert when a worker may need assistance.

It does not replace emergency services or an organisation’s emergency-response procedures.

The organisation should establish what happens when an alert is received, including who responds and how assistance is arranged.

Lone worker risk assessment

Radio equipment should be selected as part of a wider Lone Worker Risk Assessment.

The assessment should consider:

• The nature of the work
• Location
• Working hours
• Environmental hazards
• Expected communication coverage
• Emergency procedures
• Response arrangements
• Training
• Equipment requirements

The radio should support the overall safety procedure rather than being relied upon as the only control measure.

Lone worker training

Users should receive appropriate training before relying on a radio’s lone-worker functions.

Training can cover:

• Normal radio operation
• Emergency button operation
• Lone-worker prompts
• Man-down functions
• Charging
• Radio coverage
• What to do when an alert is raised
• What to do if communication is lost

Regular testing can help ensure users remain familiar with the equipment.

Lone worker system testing

Lone-worker equipment should be tested periodically.

Testing can confirm that:

• Radio coverage is adequate
• Emergency alerts are received
• Lone-worker timers operate correctly
• GPS information is available where required
• Dispatch systems receive alerts
• Batteries remain suitable
• Users understand the procedure

Testing should reflect the actual environments in which the radios are used.

Lone worker limitations

A lone-worker radio system has limitations.

For example:

• It may not work in a radio dead spot.
• GPS may not work reliably indoors.
• A flat battery can prevent operation.
• Man-down detection may not identify every incident.
• An alert does not guarantee that assistance will arrive immediately.
• Network-connected systems depend on network availability.

These limitations should be considered during risk assessment and system design.

Lone worker and system design

A professional lone-worker communication system should consider the complete process:

Worker → Radio → Radio Network → Alert → Control Room → Response

Where additional technologies are used:

Radio → GPS → Dispatch → Incident Management → Assistance

This helps ensure that an emergency alert results in an appropriate response rather than simply generating an alarm.

Lone worker and DCS

DCS can provide professional two-way radio solutions for organisations with lone-working requirements.

Depending on the application, a system can incorporate handheld radios, repeaters, emergency functions, GPS, dispatch and suitable accessories.

The correct solution depends on the working environment, required coverage, number of workers and the organisation’s lone-worker procedures.