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Prevention through Design (PtD)

The industry-recognized framework for eliminating hazards at the source — protecting workers, reducing project risk, and building safety into every design decision.

37%
Of work-related fatalities are linked to design-related issues (Driscoll et al. / NIOSH)
$4–$6
Saved for every $1 spent on workplace safety (industry research)
6 Steps
From drawing study to handover — a complete, closed-loop process
Safety Consulting

Safety Consulting: Prevention Through Design (PtD)

Engineer drafting on a blueprint — safety considered at the design stage
Designing safety in from the first line drawn — the heart of Prevention through Design.

Our Prevention Through Design (PtD) consulting services help organizations identify and eliminate hazards at the design stage of processes, products, and facilities.

By integrating safety principles early, businesses can reduce risks, improve operational efficiency, and create safer working environments for all personnel.

Hazard Elimination
Identify & eliminate hazards at the design stage before they become costly problems
Process Safety
Integrate safety principles into processes, products & facilities from the outset
Operational Efficiency
Reduce risks while improving overall operational performance and productivity
Safer Workplaces
Create safer environments that protect your workforce before work even begins

The most powerful moment to eliminate a hazard is before it exists. Prevention through Design is how responsible teams make safety a design requirement — not an afterthought.

R STAR GLOBAL
Safety Consulting Practice

The 6-Step PtD Process

A complete, closed-loop process that takes a project from initial design study through to formal handover — with built-in feedback loops to revisit earlier stages whenever risks remain unresolved.

1
Drawing / 3D Model Study
Analyze drawings, blueprints & specifications
2
Identify Hazards
Document all foreseeable hazards
3
Evaluate Risk
Rate likelihood & consequence (Low / Med / High)
4
Controls to Improve Design
Eliminate, substitute, engineer, administer
5
Implementation
Integrate & validate controls in the build
6
Handover
Deliver docs & transfer responsibility

Built-in feedback loops return the process to earlier steps if risks remain unresolved — for example, if Implementation reveals new hazards or if proposed Controls do not adequately reduce risk — ensuring every hazard is adequately controlled before handover.

Advantages

Safer Designs from the Start
Hazards are addressed during design — before construction or manufacture begins, when elimination is simplest and cheapest.
Reduced Project Risk
Systematic evaluation at the design stage minimises the likelihood of costly errors, incidents, and delays downstream.
Regulatory Compliance
A documented PtD process supports compliance with occupational health and safety legislation and relevant design standards.
Improved Collaboration
A shared structured process aligns designers, engineers, safety professionals, and project managers around common safety objectives.
Accountability at Every Stage
Clear ownership of each step ensures that hazard identification and risk control decisions are never overlooked or deferred.
Built-in Continuous Improvement
Feedback loops return the process to earlier steps if risks remain unresolved, driving iterative refinement until all hazards are adequately controlled.

Business Success

Prevention through Design delivers measurable value well beyond compliance. By identifying and resolving hazards before they reach the build phase, organisations reduce the risk of delays, rework, cost overruns, and safety incidents — protecting both project budgets and people.

The structured, documented approach also creates a defensible audit trail, demonstrating due diligence to clients, regulators, and insurers. Over time, embedding PtD into standard design practice raises the overall quality and consistency of outputs. Teams develop shared competence in risk thinking, improve cross-discipline communication, and build a culture where safety is designed in from the first line drawn — not inspected in at the end.

Mandatory or Optional?

In many jurisdictions, Prevention through Design is not a standalone legal requirement — but the obligations it fulfils very often are. Regulations governing design safety in construction, engineering, and product development increasingly require designers to demonstrate that foreseeable risks have been systematically identified and controlled before work on site or in production begins.

In practice, PtD is less about a checkbox and more about professional responsibility. It protects the design team, the client, the contractor, and the end-user. For any project where safety, structural integrity, or operational reliability cannot be left to chance, Prevention through Design is not optional — it is expected.

Frequently Asked Questions

At what stage should Prevention through Design begin?

PtD should begin at the very earliest stage of the design process — ideally during concept development, before any detailed drawings or specifications are produced. The earlier hazards are identified, the simpler and less costly they are to eliminate. Once a design is advanced or construction has started, the range of available controls narrows significantly and the cost of change rises sharply.

What is the hierarchy of controls used in Step 4?

The hierarchy of controls in PtD follows a strict priority order, from most to least effective: Elimination (removing the hazard entirely from the design), Substitution (replacing a hazardous element with a safer alternative), Engineering Controls (designing physical safeguards into the system), and Administrative Measures (procedures, training, and warnings). Teams are required to work through this hierarchy in order, applying higher-level controls wherever feasible before resorting to lower-level ones.

Can PtD be applied to both construction and product design?

Yes. Prevention through Design is applicable across any discipline where design decisions influence the safety of those who build, operate, maintain, or interact with the end result. It is widely used in building and infrastructure projects, mechanical and structural engineering, manufacturing, oil and gas, and product development. The six-step process remains consistent across sectors, though the specific hazards, standards, and regulatory requirements will vary by industry.

What happens if a risk cannot be fully eliminated?

Where full elimination is not technically or practically feasible, the process moves down the hierarchy of controls — substituting a less hazardous material or method, engineering physical safeguards into the design, or establishing administrative controls such as safe work procedures and training requirements. The key principle is that residual risk must be reduced to as low as reasonably practicable (ALARP). All residual risks and the rationale for the controls chosen must be documented and communicated to those responsible for construction, operation, and maintenance.

Ready to Build Safer Designs?

Contact our consultants for personalized guidance on integrating Prevention through Design into your project.

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