“Change is an alteration in the state of a system over time—brought about whether intentionally, or by circumstance.”
1. What inspired your transformation and interest in engineering resilient hospitals?
For me, transformation has always been about the ability to see things differently.
My own transformation began from an unusual vantage point. I started my career not on a construction site, but in eLearning for a health institution, digitally transforming the systems that train our future clinicians. This gave me a perspective on the most critical component of healthcare: the people.
At the same time, my Civil Engineering journey has immersed me in the language of structures, load paths, and facilities designed to endure. Standing with one foot in the world of concrete and steel and the other in code and cloud has been revelatory.
What drew me toward healthcare infrastructure is precisely this intersection. I see hospitals as a constellation of systems—the physical building, the technology, and the human element—that never, ever switch off. The challenge of modernising these facilities against threats like climate change and pandemics is one of the most complex engineering problems of our time.
Resilience, I have come to learn, is not only about strong structures or clever systems, but about empowering people to adapt and thrive. Ultimately, engineering a resilient hospital requires creating a thriving environment where people can perform at their best, even in the most difficult circumstances. By integrating strong foundations, intelligent networks, and empowered staff, I believe we can design hospitals that not only withstand disruption but also emerge stronger from it.
2. How has your interdisciplinary experience shaped your understanding of hospitals as complex, adaptive systems?
My perspective, straddling both the physical and digital realms of a hospital, has fundamentally shaped how I view these complex environments. I don’t see a building with medical equipment inside; I see a complex, adaptive socio-technical system. This viewpoint is grounded in “systems thinking,” which looks beyond individual parts to understand the “dynamic interaction, synchronisation, and integration of people, processes, and technology”.
A core tenet of this approach is “most healthcare problems and solutions belong to the system”. A medication error, for instance, is rarely just one person’s mistake. It’s often a system failure, where the culprits can be anything from confusing packaging and a poorly designed electronic health record (EHR) interface to high nurse-to-patient ratios and even the physical layout of the ward. To understand this, it requires a perspective that acts as a bridge between these disciplines—from digital systems and human factors to the physical engineering of the space itself.
3. When you hear “resilient hospital”, what core systems immediately come to mind, and how do you define resilience in practical terms?
When I hear “resilient hospital,” I think of a system that can absorb, adapt, transform, and learn in the face of crisis. Resilience is about keeping the services running when they are needed most.
From an engineering perspective, this depends on core infrastructure, which in my opinion is the hospital’s non- negotiable lifelines:
- Energy: The main line. It secures fuel and the ability to operate independently if the grid fails, powering every piece of critical equipment.
- Water: The lifeblood. It’s indispensable for sanitation, clinical procedures, and patient care; a failure can force a complete shutdown within hours.
- HVAC & Building Envelope: The immune system. More than just comfort, these systems are clinical tools that maintain sterile environments and provide the first line of defense against infection.
- Communications & Data: The central nervous system. This digital network connects patient information (IT) with building operations (OT), enabling coordinated care. A failure here can isolate and paralyse the entire hospital.
- Transport & Logistics: The circulatory system. This network of corridors, elevators, and pathways ensures that critical supplies, patients, and staff move efficiently. A failure creates bottlenecks that can starve critical areas of vital resources.
4. In prioritising infrastructure investments, which lenses do you rely on most—risk, lifecycle costing (TCO), patient safety, environmental impact, or regulatoryalignment—and why?
Once we identify a hospital’s critical lifelines, the next question is always: “What do we fix or build first?” Prioritising these investments is a delicate balancing act. Focusing on a single factor—cost, risk, or regulation—almost always leads to poor outcomes. True resilience demands a multi-angle approach, with patient safety as the non-negotiable priority.
The framework I recommend is a hierarchy of considerations:
- Patient Safety: Always the first and last question. Any potential failure that threatens patients must be addressed immediately.
- Risk Assessment: An “all-hazard” approach identifies and ranks threats—from floods to cyberattacks—based on their potential impact.
- Regulatory Alignment: Compliance sets the baseline, but true resilience often means going beyond minimum codes and guidelines.
- Lifecycle Costing (TCO): Investing in resilience upfront is far more cost-effective than repairing damaged facilities later.
- Environmental Impact: Low-carbon solutions reduce long-term costs and mitigate the hospital’s contribution to climate change. Viewed together, these lenses ensure that every investment is strategic—building hospitals that are safer, more reliable, and sustainable for the long term.
5. Focusing on a single critical lifeline, such as water or power, how should a hospital design that system for maximum resilience, and what telemetry is non-negotiable for crisis management
Of all a hospital’s lifelines, water is perhaps the most unforgiving. A failure in the supply can degrade operational capabilities “almost completely within two hours”. Engineering a resilient water cycle, therefore, requires a three-part philosophy.
First, radically reduce consumption, because the most secure litre of water is the one you never have to use.
Second, diversify sources beyond a single municipal pipeline by building a portfolio that includes rainwater harvesting and greywater recycling.
Third, and most critically, uphold rigorous infection control.
As water can be a “reservoir” for pathogens, every reuse strategy must follow guidelines, ensuring absolute physical separation between potable, sterile, and recycled systems to prevent cross-contamination.
During a crisis, this system needs real-time intelligence. Non-negotiable monitoring includes telemetry on storage tank levels, live water quality data, and pressure monitoring to provide the earliest possible warning of a failure.
6. What are the best strategies to keep patient flow, staff mobility, and supply chains moving during disruptions—while cutting emissions?
A hospital’s most critical vulnerability often lies beyond its walls in the fragility of its supply chain. The pandemic forced a necessary shift from ‘just-in-time’ logistics to a ‘just-in-case’ model built on resilience: diversifying suppliers, strategically stockpiling, and leveraging Consolidated Service Centres (CSCs) as a strategic buffer.
Within the hospital, the focus is on dynamic flows. Resilient design allows for segregated corridors for infectious and non-infectious patients, enabling safe and efficient mobility for both patients and staff, while routine care continues during an outbreak. This is supported by hardened access routes for ambulances, ensuring a single blocked road doesn’t cut the facility off.
Critically, many of the best strategies for resilience are also the most sustainable. Transitioning hospital fleets to Electric Vehicles (EVs) cuts emissions and, when combined with an on- site microgrid, allows the hospital to charge its vehicles during a regional power outage through Vehicle-to-Grid (V2G) technology. Similarly, robust telehealth platforms reduce travel, taking pressure off the physical facility during a surge while also lowering the carbon footprint. These strategies are critical investments in the long-term operational continuity and community health.
7. In heatwaves, floods, or bushfire/smoke events, what building-envelope and HVAC strategies (passive design, filtration, smoke control, redundancy) are most impactful without compromising clinical care?
When I think about this problem, I see it as needing a layered defence strategy. A hospital has to be a safe haven when there’s a heatwave or a smoke event outside.
So, the first line of that defence is the building envelope itself. I think of it as the hospital’s physical armour. This is everything from the obvious things, like putting high-performance windows in to repel heat, to the practical stuff, like making sure critical generators are elevated well above any predicted flood levels.
Then you have got the second layer, which is the HVAC system. To me, it has to act as the hospital’s smart lungs. In a heatwave, you absolutely need redundant cooling, especially in critical zones. But in a smoke event, that same system has to switch gears. It needs to go into recirculation mode, using advanced filtration to literally purify the air inside and keep patients safe.
Ultimately, the goal is to have a design that can intelligently adapt. It’s about turning the building from just a passive structure into an active, responsive environmental shield that protects the people inside.
8. How can hospitals use BMS/SCADA, IoT sensors, and digital twins for predictive maintenance and real-time situational awareness? What cybersecurity safeguards are essential for these connected systems?
This is a huge area of change right now. We are seeing facilities management shift from a purely reactive model—basically, waiting for something to break—to a predictive one. This whole transformation is really powered by a stack of technologies.
So, at the foundational layer, you have got the traditional Building Management System, or BMS. That’s the brain that’s been controlling core functions like the HVAC for years.
Then, layered on top of that, you add thousands of IoT sensors. I think of these as the building’s nervous system. They give you incredibly detailed, real-time data on everything from a water pump’s vibration pattern to the precise air pressure in an operating theatre.
And the final piece that brings it all together is the Digital Twin. It’s essentially a live, virtual replica of the entire hospital. It pulls in the original design data, the live info from the BMS, and all that rich data from the IoT sensors. When you have that, you can do incredible things. You can run simulations and predict that a critical piece of equipment is going to fail weeks in advance. That’s true predictive maintenance. And during a crisis, it gives you total situational awareness.
But—and this is an important ‘but’—when you connect all of this operational technology, or OT, you create a massive new attack surface. A cyberattack stops being an IT problem and becomes a direct threat to patient safety. For me, the non-negotiables are things like rigorously segmenting the OT network away from the main IT network. And here in Australia, it also means strictly adhering to mandatory OT-specific standards, like the AS IEC 62443 framework.
9. What does a “minimum viable hospital” look like under stress?
This is a great concept, the ‘minimum viable hospital.’
For me, it’s the ultimate stress test of resilience.
It’s all about having a pre-planned strategy to contract the hospital down to a core set of life-sustaining functions that you can support entirely with your on-site resources. We call it ‘island mode’— the ability to physically disconnect from the external power and water grids and operate as a self-sufficient island. You’re running only the absolute essentials, like the emergency department, ICU, and operating theatres, on your own buffered water and on-site generators.
But the big question is, how do you train people for such a high-stakes transition? You can’t just do a full-scale live drill. It would be prohibitively expensive, massively disruptive for patients, and would carry its own safety risks.
And that’s where I think immersive technologies like Virtual Reality become indispensable. VR provides a safe, repeatable, and incredibly realistic simulated environment where teams can practice the entire island-mode protocol. We know from research that VR training really boosts knowledge retention and decision- making skills. It allows your engineers to practice dangerous high voltage switching sequences and your clinical leaders to triage virtual patients, all without any real-world consequences.
Because really, the greatest challenge in a crisis is rarely equipment failure; it’s human failure under pressure. VR training builds that cognitive resilience. It bridges the gap between the written plan and the chaotic reality of a crisis, letting staff build the muscle memory they need to perform effectively when it matters most.
10. Which KPIs prove resilience and sustainability (e.g., water-use intensity, non-potable substitution rate, transport emissions per occupied bed-day, critical-system downtime)? How should data be captured and audited?
What gets measured gets managed, and for too long, we have focused on traditional metrics like bed occupancy. That’s important, but it tells you absolutely nothing about how a hospital will perform during a major shock. So, I think we need a dedicated scorecard to track the things that really prove resilience and sustainability.
For capturing the data, you want to automate as much as you can. You pull information from the Building Management System, from your IoT sensors, and utility bills. But—and this is the key—you can’t just audit the data. You must audit the performance. You do that through regular, realistic drills that test how the hospital and its staff really function under stress.
So, when I think about what a balanced scorecard looks like, I break it down into a few key areas.
First, there’s Operational Resilience. The absolute number one KPI here is Critical-System Downtime. That means any unscheduled downtime for your core lifelines—power, medical gas, water. Any downtime is a direct threat to patient safety, plain and simple.
Next is Resource Sustainability. Here, you are tracking your Energy and Water Use Intensity, along with your Greenhouse Gas Emissions. These are the metrics that measure your efficiency, help you manage costs, and track your progress toward any net-zero goals.
And finally, and this might be the most important, is Patient and Staff Wellbeing. A powerful KPI here is tracking the number of Patient Safety Incidents that happen During a Disruption. This is very crucial because it links the performance of your infrastructure directly to patient outcomes.
When you bring all of that together, it stops being a ‘back-of- house’ facilities issue. It elevates infrastructure performance to a strategic, board-level conversation, and gives you a true picture of how ready you are for the future.
11. For brownfield vs. greenfield hospitals, what quick wins (≤12 months) and multi-year moves would you prioritise? What typical barriers (technical, financial, cultural) have you seen in Australia/our region, and how can leaders overcome them?
That’s a practical question, because this is where the rubber hits the road. You can’t have a one-size-fits-all approach; you must be pragmatic about whether you’re dealing with an existing hospital—a brownfield site—or a brand-new greenfield build.
For an existing hospital, you are looking for targeted interventions. You can get some quick wins in under 12 months, like upgrading HVAC filtration to handle bushfire smoke, or just really drilling down on your emergency plans. Then you have the multi-year moves, the big projects like relocating your critical infrastructure out of a basement you now know is a flood zone. That’s how you build lasting resilience over time.
Now, a new build is a golden opportunity. You can embed resilience right from day one. You can have flexible designs, like wards that can easily be converted into isolation units. You can build the digital twin from the very start. It’s so much more cost- effective to do that upfront than to try and retrofit it down the line.
But, of course, you are always going to face barriers, and I have seen a few that are pretty typical for our region. There are the obvious technical and financial ones, but there’s also a cultural barrier. You often find that the facilities, IT, and clinical leadership teams don’t always speak the same language. And a huge one right now is the national shortage of specialist skills and trades needed for these complex jobs.
Overcoming these things comes down to strong leadership and making a compelling business case. But for the skills shortage, no single hospital can solve that alone. That’s where you need partnerships with the government and the education sector to build that sustainable workforce pipeline.
And that brings me to what I think is the most critical point. Workforce development. You can have the most sophisticated hospital design in the world, but it’s meaningless without the skilled people to build, operate, and maintain it. A truly comprehensive strategy has to look beyond the hospital walls to make sure both our infrastructure and our people are ready for the challenges ahead.