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Combining Computational Fluid Dynamics and Agent-Based Modeling: a new approach to evacuation planning.

Epstein JM, Pankajakshan R, Hammond RA - PLoS ONE (2011)

Bottom Line: CFD is a predominant technique for modeling airborne transport of contaminants, while ABM is a powerful approach for modeling social dynamics in populations of adaptive individuals.The hybrid CFD-ABM method is capable of simulating how large, spatially-distributed populations might respond to a physically realistic contaminant plume.We conclude by arguing that this new approach can be powerfully applied to arbitrary population centers, offering an unprecedented preparedness and catastrophic event response tool.

View Article: PubMed Central - PubMed

Affiliation: Department of Emergency Medicine, The Johns Hopkins University, Baltimore, MD, USA.

ABSTRACT
We introduce a novel hybrid of two fields-Computational Fluid Dynamics (CFD) and Agent-Based Modeling (ABM)-as a powerful new technique for urban evacuation planning. CFD is a predominant technique for modeling airborne transport of contaminants, while ABM is a powerful approach for modeling social dynamics in populations of adaptive individuals. The hybrid CFD-ABM method is capable of simulating how large, spatially-distributed populations might respond to a physically realistic contaminant plume. We demonstrate the overall feasibility of CFD-ABM evacuation design, using the case of a hypothetical aerosol release in Los Angeles to explore potential effectiveness of various policy regimes. We conclude by arguing that this new approach can be powerfully applied to arbitrary population centers, offering an unprecedented preparedness and catastrophic event response tool.

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Cost curves as a function of SIP compliance level for varying building permeability.
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Related In: Results  -  Collection


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pone-0020139-g002: Cost curves as a function of SIP compliance level for varying building permeability.

Mentions: Case 3. Deviations from full compliance produce (nonlinear) increases in congestion and attendant casualties. Even when buildings confer no protection (light blue curve in Figure 2), increase in compliance from 0 to 100% decreases cost by 27% by reducing congestion.


Combining Computational Fluid Dynamics and Agent-Based Modeling: a new approach to evacuation planning.

Epstein JM, Pankajakshan R, Hammond RA - PLoS ONE (2011)

Cost curves as a function of SIP compliance level for varying building permeability.
© Copyright Policy
Related In: Results  -  Collection

Show All Figures
getmorefigures.php?uid=PMC3105018&req=5

pone-0020139-g002: Cost curves as a function of SIP compliance level for varying building permeability.
Mentions: Case 3. Deviations from full compliance produce (nonlinear) increases in congestion and attendant casualties. Even when buildings confer no protection (light blue curve in Figure 2), increase in compliance from 0 to 100% decreases cost by 27% by reducing congestion.

Bottom Line: CFD is a predominant technique for modeling airborne transport of contaminants, while ABM is a powerful approach for modeling social dynamics in populations of adaptive individuals.The hybrid CFD-ABM method is capable of simulating how large, spatially-distributed populations might respond to a physically realistic contaminant plume.We conclude by arguing that this new approach can be powerfully applied to arbitrary population centers, offering an unprecedented preparedness and catastrophic event response tool.

View Article: PubMed Central - PubMed

Affiliation: Department of Emergency Medicine, The Johns Hopkins University, Baltimore, MD, USA.

ABSTRACT
We introduce a novel hybrid of two fields-Computational Fluid Dynamics (CFD) and Agent-Based Modeling (ABM)-as a powerful new technique for urban evacuation planning. CFD is a predominant technique for modeling airborne transport of contaminants, while ABM is a powerful approach for modeling social dynamics in populations of adaptive individuals. The hybrid CFD-ABM method is capable of simulating how large, spatially-distributed populations might respond to a physically realistic contaminant plume. We demonstrate the overall feasibility of CFD-ABM evacuation design, using the case of a hypothetical aerosol release in Los Angeles to explore potential effectiveness of various policy regimes. We conclude by arguing that this new approach can be powerfully applied to arbitrary population centers, offering an unprecedented preparedness and catastrophic event response tool.

Show MeSH