\input zb-basic \input zb-ioport \iteman{io-port 06105857} \itemau{Ezaki, Takahiro; Yanagisawa, Daichi} \itemti{Metastability in pedestrian evacuation.} \itemso{Sirakoulis, Georgios Ch. (ed.) et al., Cellular automata. 10th international conference on cellular automata for research and industry, ACRI 2012, Santorini Island, Greece, September 24--27, 2012. Proceedings. Berlin: Springer (ISBN 978-3-642-33349-1/pbk). Lecture Notes in Computer Science 7495, 776-784 (2012).} \itemab Summary: We investigate the behavior of evacuation process with steady inflow using the floor field model. By simulations, the metastable state induced by conflicts of pedestrians is observed. The system is controlled by parameters of the inflow and competitiveness of the pedestrians, and large inflow leads to a congested situation. The critical condition of the transition is theoretically derived. \itemrv{~} \itemcc{} \itemut{cellular automata; pedestrian dynamics; evacuation process; floor field model} \itemli{doi:10.1007/978-3-642-33350-7\_81} \end