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Crowd simulation is used for evacuation and crowd safety inspections, studyof performance in crowd systems and animations. Cellular automata has beenextensively used in modelling the crowd. In regular cellular automata models,each pedestrian occupies a single cell with the size of a pedestrian body.Since the space is divided into relatively large cells, the movements ofpedestrians look like the movements of pieces on a chess board. Furthermore,all pedestrians have the same body size and speed. In this paper, a methodcalled fine grid cellular automata is proposed in which smaller cells are usedand pedestrian body may occupy several cells. The model allows the use ofdifferent body sizes, shapes and speeds for pedestrian.  The proposed model is used for simulating movements of pedestrians toward atarget. A typical walkway scenario is used to test and evaluate the model. Themovements of pedestrians are smoother because of the finer grain discretizationof movements and the simulation results match empirical speed-density graphswith good accuracy.

Simulation of Pedestrian Movements Using Fine Grid Cellular Automata Model