Fire Safety Science Digital Archive

Some collective behavior during escape panic such as the ‘faster-is-slower effect’ and the irregular outflow are associated with clogging. The reasons for clogging appearance are investigated with a multi-grid model which is presented in previous work. The model implements finer discretization which leads to clogging effects in the dynamics. The effects of the exit width and the interactions caused by overlapping grid on clogging are analyzed by a simulation that pedestrians evacuate from a room with one door. The influences of different maximum numbers of overlapping grid are also investigated.