Flood Resilient Cities for an Uncertain Future | Marcus Quigley | TEDxBeaconStreet
The speaker argues that current infrastructure design, which relies on predicting and reacting to historical flood risks, is inadequate for unpredictable climate change. He proposes a paradigm shift toward building resilient cities capable of autonomously "acting in advance" of expected events, moving from mere crisis response to proactive outcome management. This is demonstrated by modernizing water management systems in locations like Ormond Beach, Florida, to operate without constant human oversight.
## Speakers & Context
- Unnamed speaker (expert on urban resilience).
- Context is adapting infrastructure development for modern water management in the face of increasing climate risk and flood events.
- Audience seems to be comprised of professionals concerned with civil engineering and urban planning.
## Theses & Positions
- Traditional civil engineering approaches build around predicting and accepting "acceptable risk" based on historical understanding.
- Relying on past data (e.g., "500 year event") is insufficient when underlying systems behavior is not fundamentally understood.
- The focus must shift from *how* the city should work ("city should just work") to observable, human-centric *outcomes* (clean water, safety, recreation).
- The key to modern resilience is enabling systems to act autonomously, "in advance," rather than merely reacting to events.
- Cities must be designed to adapt to a "collective uncertain future."
## Concepts & Definitions
- **Return periods:** A statistical measure in civil engineering, such as a "100 year event," indicating the probability of an event occurring in any given year (e.g., "1% probability of happening in any given year").
- **Outcomes:** What people expect from a city—clean water, safety from flooding, and the ability to perform activities like boating or fishing—rather than just the process of the city "just working."
- **Acting in advance:** Systems having the capability to take preventative action based on predictive monitoring, rather than waiting for an event to occur.
## Mechanisms & Processes
- **Traditional Infrastructure Management:** Approach predicated on current understanding of future conditions, where engineers predict and build for expected risks.
- **Modern Resilient System Operation:** Integrating intelligence into city components to allow systems to monitor weather and "take action without people in the loop."
- **System Integration:** Weaving together "hundreds, thousands even millions of subcomponents of our cities" to achieve novel outcomes.
## Timeline & Sequence
- **Since 1980:** Increased frequency of extreme weather events documented, including **28 major flooding events** and **38 tropical cyclone events**.
- **2017 (example):** Documented experience with **5 major hurricanes** just in the North Atlantic.
- **Ormond Beach, Florida (2017):** Example of a system (lakes/pumps) operating to preemptively reduce water levels *before* Hurricane Irma arrived.
- **Historical Operation:** Systems have long operated (e.g., Lake Mead), but historically required "people to be there to make these decisions."
## Named Entities
- **Ormond Beach, Florida:** Residential community used as a primary example of proactive water management.
- **Daytona Beach:** Location reference for Ormond Beach.
- **Florida:** Geographic context for the resilience example.
- **Beckley, West Virginia:** Location cited as another example of autonomous system action.
## Numbers & Data
- Flooding events since 1980: **28**.
- Tropical cyclone events since 1980: **38**.
- Damage from these events: **over a billion dollars**.
- Hurricanes in the North Atlantic (2017): **5**.
- Size of Ormond Beach: **about 550 acres**.
- State operation data: **65 million gallons** of storage in **21 states** operating in a proactive manner.
## Examples & Cases
- **Hurricane Harvey:** Described as a *"500 year event."*
- **Superstorm Sandy:** Described as a *"tenth one in 10,000 year event."*
- **Ormond Beach Scenario (2017):** Observation that the lake system level dropped *before* Hurricane Irma arrived, suggesting pre-emptive pump action.
- **Beckley, WV facility:** Example of a system autonomously taking action based on weather monitoring.
- **Fairfax, Virginia:** Example showing a large facility operating autonomously during rainfall.
## Tools, Tech & Products
- **Pumps:** Mechanical systems used to actively drain water from lake systems.
- **Modern Sensor/AI Integration:** Technology that enables large-scale components to be woven together with "intelligence."
- **Monitoring Systems:** Technology that allows facilities to watch weather patterns to enable proactive decision-making.
## References Cited
- None explicitly cited outside of general knowledge of climate records (e.g., Hurricane Harvey, Superstorm Sandy).
## Trade-offs & Alternatives
- **Reactive Model (Traditional):** Building with accepted risk based on past averages and requiring human intervention.
- **Proactive Model (Proposed):** Integrating intelligence to anticipate needs, allowing systems to act autonomously before impacts are felt.
- **Human Involvement:** The trade-off between high-touch, human-decision-making (needed historically) and scalable, automated intelligence.
## Methodology
- **Statistical Modeling:** Using concepts like "return periods" (e.g., 1% probability) to quantify perceived risk.
- **Systems Observation:** Analyzing real-world instances (e.g., Ormond Beach) where infrastructure responded proactively to impending threats.
- **Engineering Integration:** Combining mechanical components with real-time weather data and adaptive controls.
## Conclusions & Recommendations
- Move from predicting risk based on the past to building systems that adapt to the *uncertainty* of the future.
- Develop and implement "outcomes-based" infrastructure design that ensures human needs (dignity, safety) are met proactively.
- Embrace autonomous, intelligent infrastructure networks to manage environmental unpredictability.
## Implications & Consequences
- If current patterns of extreme weather continue, existing infrastructure built only for historical probabilities will fail.
- Successful implementation means transforming infrastructure from passive absorbers of force into active, intelligent participants in community safety.
## Verbatim Moments
- *"This is how we describe these things to ourselves."*
- *"The really key thing when you hear anything about the frequency of events is that we assume that we understand the behavior of the underlying systems."*
- *"what do we build then?"*
- *"people expect to have clean water people expect to be safe from flooding further we expect to be able to do things like go boating and fishing swimming at the beach."*
- *"the system that you rely on to protect your home and family is acting before the storm has ever arrived."*
- *"it's an example of systems being able to act on their own in advance in the way that I described."*
- *"it allows us to take hundreds thousands even millions of subcomponents of our cities and weave them together integrate intelligence and get very different outcomes."*
- *"we can build cities to adapt to our collective uncertain future."*