An Analysis of a Modified Social Force Model in Crowd Emergency Evacuation Simulation

Hamizan Sharbini, Roselina Salleh, Habibollah Harun


In crowd evacuation simulation, a number of exit point and obstacles play an important role that can influence the result in the evacuation simulation. This paper focuses on the movement of the crowd’s emergency evacuation based on a modified social force model (SFM) via optimising the obstacles interaction parameter in one the SFM component. The simulation also compared original SFM (without obstacles) and modified SFM (with obstacles). The results show the impact can minimize the concept of arching phenomenon (faster-is-slower). For an obstacles issue, it is proven that obstacles can help to reduce evacuation time in regards to its proper position and exit width.


Crowd evacuation; Crowd simulation; Emergency evacuation; Faster-is-slower; Social force model.

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