An Extended Small-grid Lattice Gas Model for Pedestrian Counter Flow

In this paper, an extended small-grid lattice gas model is built up for pedestrian counter flow. A previous experimental work is used to compare with the extended model A simulation results to select the key parameters. The result shows that when the step in unit time is chosen as 1/2*cnt or 1/4*cnt and drift point is selected between 0.5 and 0.7, the model A simulation will have good agreement with the experimental study. Then model B with the same rule and the suitable key parameters is used to study pedestrian counter flow. It is found that the step in unit time and drift point have no effect on the general trend of a dynamical jamming transition from the freely moving state at low density to the stopped state at high density, but have influence on the value of critical density.