Abstract

ABSTRACTCellular automaton (CA) approach has been widely used in pedestrian flow studies. However, one problem of CA approach is that gridlock usually occurs in counter flow. One possible reason is that CA models still do not represent correctly cognitive processes of real people. To study whether the gridlock would occur when real people were required to walk in discrete space and time, we performed an experimental study on pedestrian counter flow. Remarkable collaboration behaviours of pedestrians have been observed, which enable the formation of exit rows and prevent the formation of gridlock. Furthermore, we performed a comparative experiment in which pedestrians walked under normal condition. Our studies indicate that to fully describe pedestrian counter flow with CA approach, the remarkable collaboration behaviours of pedestrians need to be considered. Moreover, one might also need to consider other factors such as flexible characteristics of pedestrians, small cell size, and various walk speeds.

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