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| Home > Publications database > Multiscale simulation of pedestrians for efficient predictive modeling in large events |
| Journal Article | FZJ-2016-03781 |
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2016
Old City Publishing
Philadelphia, Pa.
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Abstract: The Hermes project [1] demonstrated the usefulness of on site predictive simulations of probable evacuation scenarios for security personnel. However, the hardware needed was prohibitively expensive [2]. The present paper shows that a multiscale approach can perform the simulation in a fraction of time without loss of useful information. The main problem is the correct passing of agents from a coarse scale model to a fine scale model, here from a CA model to a force based model. This will be achieved by inserting agents into the force based model at positions and speeds optimized for smooth walking either by a priori information or using Voronoi cells. The resulting model is easily parallelised using OpenMP, achieving reasonable efficiency.We also show how a CA method can be modified to address the problem better than standard CA, too. However, this approach needs further development and calibration to be reliable.
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