The moving behavior of a large object in the crowds in a narrow channel

In this paper, the interaction between the large object and the pedestrians in the narrow channel is studied. The pedestrians are modelled by the lattice gas model and they are regarded as biased random walkers. The dependence of the average speed of the large object on the density of the pedestrians, the size of the large object, and the position of the large object is investigated. The simulations show that with the increase of the pedestrian density, the average speed of the large object either decreases or remains constant. It is found that when the large object is moving opposite to the pedestrians, generally it will move fast in the middle of the channel. However, if it moves in the same direction as the pedestrians, then it will move fast when it is along the wall.