Implementation of social force pedestrian simulation model by molecular dynamic method

CHEN Feng, ZHAI Qing-sheng, WANG Zi-jia

Systems Engineering - Theory & Practice ›› 2014, Vol. 34 ›› Issue (4) : 1003-1010.

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Systems Engineering - Theory & Practice ›› 2014, Vol. 34 ›› Issue (4) : 1003-1010. DOI: 10.12011/1000-6788(2014)4-1003

Implementation of social force pedestrian simulation model by molecular dynamic method

  • CHEN Feng, ZHAI Qing-sheng, WANG Zi-jia
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Abstract

The principle, current research and existing problems of social force model for pedestrian simulation are summarized in this paper. Gear's predictor-corrector method in molecular dynamic is applied in social force method. According to Courant-Friedrichs-Lewy condition, the minimum time step for explicit method pedestrian simulation is determined, and the linked-list cell method is proposed to accelerate computing. Then the framework of programming for the method is designed and the simulation method is realized. The simulation test recreated some pedestrian self-organization phenomena including lane formation. Simulation result demonstrates that deceleration and collision avoiding mechanism results in more realistic outcome, and the link cell method can reduce simulation time significantly.

Key words

social force model / molecular dynamics / simulation / algorithm

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CHEN Feng , ZHAI Qing-sheng , WANG Zi-jia. Implementation of social force pedestrian simulation model by molecular dynamic method. Systems Engineering - Theory & Practice, 2014, 34(4): 1003-1010 https://doi.org/10.12011/1000-6788(2014)4-1003

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