From Shelter to Home After Disasters | Elizabeth Wagemann | TEDxCambridgeUniversity
A speaker argues that post-disaster shelter design must prioritize cultural adaptation and the sense of "home"—a complex emotional entity—over universal, technically efficient prototypes. The argument builds on the massive devastation of the 2010 Chile earthquake, where millions lost everything, leading to the conclusion that designing for local culture and flexibility is essential for true recovery. The speaker recommends that innovative design must incorporate local needs, moving beyond mere structural standards.
## Speakers & Context
- Unnamed speaker; presenting research on post-disaster housing design.
- The context is responding to major natural disasters (e.g., 2010 Chile earthquake, 2004 Indian Ocean tsunami).
- The speaker's core focus is on the psychological and social aspects of shelter, not just engineering standards.
## Theses & Positions
- "Home" is a complex concept encompassing a location, physical structure, material, and a set of feelings/emotions.
- Homelessness implies not just physical lack of shelter, but a "disengagement from the culture society and identity."
- Disaster housing provision must incorporate local culture and home practices to support recovery, rather than relying on universal, one-size-fits-all models.
- A successful post-disaster shelter must support the *process* of "homemaking"—a state of incremental improvement—and provide a sense of belonging, dignity, security, and control.
## Concepts & Definitions
- **Home:** Defined as a location, a place, a physical structure, and a material; fundamentally linked to "feelings and emotions" and the "relation between these concepts."
- **Homelessness:** Defined by the UN as implying "disengagement from the culture society and identity."
- **Sense of belonging:** A psychological need that needs to be supported in temporary housing to prevent trauma.
- **Making:** Implies a *process* of continuous, incremental improvement, reflecting social ambitions.
## Mechanisms & Processes
- **Post-Disaster Recovery:** Requires time measured in "years," not months, to normalize life, resume school, or re-establish work.
- **Housing Improvement Cycle:** Families improving temporary shelters, enlarging them, and customizing them reflects a move towards a durable solution, even if done without technical supervision.
- **Design Intervention Goal:** To create designs that *catalyze* modification and flexibility, supporting the family's ability to build their own sense of home.
- **Engineering/Technology:** Mention of sound engineering in cars (door closing, engine feedback) to create a sense of safety and comfort, suggesting analogous design principles for housing.
## Timeline & Sequence
- **February 27, 2010:** Speaker was woken by a big earthquake in Chile, which required immediate actions: waking daughter, running to a safe spot, and checking building structural integrity.
- **Post-2010 Earthquake:** Observation of how building codes were revised after major events, leading to better safety standards.
- **Past Disaster Examples:** Specific mention of the 2004 Indian Ocean tsunami and earthquakes in Peru and Chile.
## Named Entities
- **Chile:** Location prone to severe natural disasters.
- **United Nation:** Source referencing the definition/implications of homelessness.
- **India:** Location mentioned in the context of the 2004 Indian Ocean tsunami.
- **Japan, Philippines, China:** Countries listed among those affected by recent disasters.
- **London:** Used as a metric for comparison of destroyed housing stock.
## Numbers & Data
- **Earthquake Magnitude:** 8.8 magnitude (the second strongest in Chilean history).
- **Earthquake Impact:** Moved the Earth on its axis by **8 centimeters** and shortened the day by **more than one microsecond**.
- **Displacement:** In China, families moved from traditional homes of **over one hundred square meters** to temporary houses of **eighteen square meters**.
- **Housing Impact:** The number of houses destroyed after recent disasters represents **three times the housing stock of London**.
## Examples & Cases
- **2010 Chile Earthquake:** Earthquake lasted **90 seconds**; family evacuated building, which was in "perfect condition."
- **Chilean Disaster Reality:** Initial recovery options involved moving to parents' houses, renting, or relying on insurance; not everyone was equally prepared.
- **China Housing Contrast:** From traditional homes ($\text{>100 m}^2$) to temporary $\text{18 m}^2$ settlements.
- **Sri Lanka Post-2004 Tsunami:** Metal shelters were perceived as "microwave ovens" due to extreme heat.
- **Peru/Chile Cooking Habits:** In these areas, families traditionally cook outdoors, and the kitchen is a central, warming part of the house, a factor that must guide design.
- **Facade Importance:** Illustrating that the importance of creating a facade may sometimes supersede the completion of other rooms.
## Tools, Tech & Products
- ** polyurethane foam domes:** Shelter type rejected by communities in Turkey, Peru, and Nicaragua because they were unfamiliar and combustible.
- **Metal/Timber/Plastic Panels:** Materials used in modern (but sometimes inadequate) temporary housing.
- **Insurance company:** A mechanism for financial recovery discussed in the context of personal preparedness.
## Trade-offs & Alternatives
- **Global vs. Local:** The trade-off between standardized, "universal prototypes" and locally relevant designs that honor existing cultural practices.
- **Material Choice:** The trade-off between durable, modern materials and materials inappropriate for local climate or customs (e.g., metal sheds in heat).
- **Temporary vs. Permanent:** Recognizing that temporary shelters must support long-term aspirations toward a durable solution.
## Counterarguments & Caveats
- The concept of "universal prototypes" is flawed because it ignores local cultural traditions and specific climate needs.
- Technical solutions (like foam domes or standardized metal sheds) often fail because they lack cultural or functional appropriateness (e.g., heat, open-fire cooking).
## Conclusions & Recommendations
- Disaster shelter design must be multidisciplinary, carefully incorporating local culture, social adequacy, and material availability.
- The goal is to design for *flexibility* to catalyze modifications, allowing families to transform the space into a true "home."
- The task is to define temporary houses that are adequate while explicitly accommodating local cultural values.
## Implications & Consequences
- Failure to integrate culture leads to shelters being rejected or inadequate (e.g., metal sheds in Sri Lanka).
- If home is viewed only as a physical structure, it ignores the resulting social, psychological, and identity losses experienced during recovery.
## Verbatim Moments
- *"Home has been defined as a location a place physical structure a material but also as a set of feelings and emotions and as the relation between these concepts that ties them together."*
- *"homelessness implies disengagement from the culture society and identity."*
- *"what will you do if your house was destroyed in my case if the 2010 earthquake had destroyed my flat..."*
- *"Our task is to predefined temporary houses that are adequate including those local cultures we know that families will be living there for many years and we know the places and areas that are most most exposed."*
- *"The design should not be used to show their families."* (referring to universal prototypes)
- *"Every second breath, you should really say, 'Thank you, ocean.'"* (This specific quote appears in the transcript body for the deep-sea talk but is contextually misplaced here, included as it was present in the input material.)
- *"Why don't we have something like that in houses in places where families need to recover to feel less vulnerable more at home after disasters."*