12.4 Innovation & Technology in Construction Health and Safety
Key Takeaways
Technology helps most at design and planning stage: BIM, clash detection and 4D sequencing let designers meet their CR 6 duties and let planners remove hazards before work starts.
A digital health and safety file is acceptable if it is complete and available on site on request to an inspector, the client, the client's agent or a contractor, as CR 7(1)(b) requires.
Drones used for inspections and surveys fall under Part 101 of the Civil Aviation Regulations: the aircraft must be registered and non-private operations need a remote pilot licence and an operating certificate from SACAA.
Wearables, cameras and biometric access systems process personal information, so their use must meet POPIA, with special care for biometric and health data.
Every new technology is a change: it needs a CR 9 risk assessment, consultation with the health and safety committee, training under section 8(2)(e) and a check that it does not replace higher-order controls.
1. Innovation as a Core Knowledge Area
The SACPCMP lists "Innovation and Technology in Health and Safety" among the core knowledge areas for construction health and safety registration, and its project and construction management areas include construction technology, innovation and data management. The CHSM is expected to judge which technologies genuinely reduce risk, and how to introduce them without creating new hazards or legal problems.
2. Design and Planning Technology
The best time to remove hazards is before work starts, which is why the Construction Regulations place duties on designers (CR 6) and require clients to provide health and safety specifications (CR 5(1)(b)).
- Building Information Modelling (BIM): a shared 3D model lets designers spot hazards such as unsafe access for maintenance, roof edges without anchor points, or heavy precast units that need large cranes near overhead lines.
- Clash detection: automated checks find conflicts between structure and services early, reducing rework, cutting and drilling on site.
- 4D sequencing: linking the model to the programme shows which trades will work above or beside each other, where crane slew zones overlap, and when temporary works must be in place.
- Design for safety reviews: model walkthroughs with the CHSM, temporary works designers and contractors support the designer's duty under CR 6 to take the specification into account and to inform the client of dangers that cannot be designed out.
3. Digital Systems for Site Management
- Digital health and safety files: CR 7(1)(b) requires the principal contractor to open and keep on site a health and safety file containing all documentation required by the Act and the regulations, available on request to an inspector, the client, the client's agent or a contractor. An electronic file is acceptable if it is complete, controlled and can be produced on site when requested, including during power or network failures.
- Inspection and permit apps: mobile checklists with photographs, GPS and time stamps make registers harder to back-date and speed up NCR close-out. The CHSM must still check that inspections are real, not "tick-box" entries.
- Training matrices and access control: linking the training matrix to electronic gates prevents entry by workers whose induction, competency proof or Annexure 3 certificate has expired.
- Dashboards: real-time leading and lagging indicators (Section 12.2) support faster decisions.
4. Drones (Remotely Piloted Aircraft)
Drones allow roof, façade, bridge and tower crane inspections and site surveys without sending people to height. In South Africa they are regulated by Part 101 of the Civil Aviation Regulations, 2011, in force since 1 July 2015 and administered by the South African Civil Aviation Authority (SACAA):
- the aircraft must be registered with SACAA;
- for commercial, corporate and non-profit operations, the pilot must hold a remote pilot licence, and the operator needs an SACAA operating certificate and an aircraft letter of approval;
- commercial operations also need an air service licence;
- operating limits apply, such as restrictions near aerodromes and over people.
The CHSM should verify these documents before a drone service provider flies over the site, include drone flights in the risk assessment and site rules (exclusion zones, interaction with crane operations), and consider privacy, because drone imagery can capture neighbours and the public.
5. Wearables, Sensors and Proximity Systems
- Proximity warning and collision avoidance: tags and sensors warn plant operators and pedestrians when they come too close. These systems support, but do not replace, CR 23 controls such as segregation, trained and authorised operators, and safe reversing arrangements.
- Gas detectors and environmental sensors: continuous monitoring in confined spaces supports GSR 5 testing and ventilation; noise and dust monitors support the Noise Exposure and HCA Regulations.
- Fatigue and heat-stress monitoring: wearables can flag fatigue or heat strain, relevant to heat stress controls under the Physical Agents Regulations, 2024.
- Lone-worker and man-down devices: these raise alarms when a worker falls or stops moving.
6. Off-Site Construction and Assistive Equipment
Moving work into a factory, through prefabrication and modular construction, removes much work at height and reduces exposure to weather, though it adds heavy-lift and transport risks. Exoskeletons and lifting aids can reduce strain in repetitive overhead or lifting tasks, supporting the Ergonomics Regulations, 2019, but they must be assessed for fit, new pinch points and over-reliance. Remote-controlled demolition machines and robotic equipment keep operators out of the collapse and dust zone.
7. Legal and Practical Controls for New Technology
Every new technology is a change in how work is done and must be managed:
- Risk assessment and management of change: CR 9(1) requires risk assessment before and during construction work; assess the new equipment's own hazards (battery fires, radio interference, distraction) and its effect on existing controls.
- Consultation: discuss the change with health and safety representatives and the committee (sections 18 to 20); workers often see practical problems first.
- Training and competence: section 8(2)(e) requires the necessary information, instructions and training; operators of new plant need proof of competency and written authorisation under CR 23(1)(d).
- Personal information: the Protection of Personal Information Act, 2013 (POPIA) applies to location tracking, video and biometric data. Biometric information and health information are special personal information under POPIA, so the employer must have a lawful basis, limit collection to what is necessary, secure the data and inform workers.
- Keep the hierarchy of controls: technology that warns people of a hazard is an administrative or detection measure; elimination, substitution and engineering controls still come first.
- Avoid automation complacency: alarms that sound too often get ignored, sensors fail, and batteries run flat. Maintenance, testing and backup procedures are part of the control.
8. Evaluating an Innovation
A simple test for any proposed technology: Does it remove or reduce a significant risk? Is it reliable in site conditions? Can the workforce use it? Does it comply with POPIA and other laws? What new hazards does it create? How will we measure whether it worked? A pilot on one site with clear measures is usually better than a company-wide roll-out.
A principal contractor plans to use a drone service provider to inspect a 60-metre tower crane and the roof edges of a building under construction. Before allowing the flights, what should the CHSM verify?
Only that the pilot holds a valid driver's licence, because SACAA rules apply to aircraft carrying passengers.
That the provider holds an ISO 45001 certificate, which replaces aviation approvals for construction work.
Nothing beyond the provider's public liability insurance, because drones are toys and fall outside aviation law below 120 metres.
That the aircraft is registered with SACAA and the provider holds the Part 101 approvals for non-private operation, and that the flights are covered in the risk assessment and site rules.
A contractor wants to install biometric fingerprint gates linked to the training matrix, and to require all workers to wear location-tracking tags. The health and safety committee raises concerns. Which response best reflects the legal position?
Proceed only if every worker signs a waiver of their privacy rights, which removes the need to comply with POPIA.
Abandon the plan, because POPIA prohibits all processing of biometric information by employers.
Proceed after confirming a lawful basis under POPIA, limiting data to what is necessary, securing it and informing workers, and after consulting the committee and assessing the system's risks.
Proceed immediately, because the OHS Act overrides POPIA wherever safety is involved and workers have no say.
After a near miss between a reversing dump truck and a banksman, the contractor fits proximity-warning tags to all plant and workers and proposes to stop using banksmen and segregated walkways because 'the system will warn everyone'. How should the CHSM respond?
Disagree, because proximity systems are prohibited on South African construction sites.
Agree, because proximity warning is an engineering control that removes the hazard of moving plant entirely.
Keep segregation, traffic planning and the other CR 23 controls; treat the tags as an extra warning layer that needs testing, maintenance and training, and review the change with the committee.
Agree, provided the tags are tested once at installation and the supplier signs a Section 37(2) agreement.
Sections you finish are checked off in the contents.