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Research on pedestrian dynamics has recently been used in the analysis of procedures to reduce the risk of disease spread in airplanes.

For many years scientists relied on the SPED model; however, it's slow, which makes it difficult to make timely decisions.

The researchers proposed the CALM model (for constrained linear movement of individuals in a crowd).

Like SPED, CALM simulates movement in narrow, linear passageways. However, CALM performs almost 60 times faster than the SPED model.

The team validated their results by examining disembarkation times on three different types of airplanes. They performed simulations with 1,000 different combinations of values and compared it to the empirical data.

The researchers relied on TACC's Frontera supercomputer, especially the GPU sub-system, to deploy their simulations in the COVID-19 emergency.


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