抄録
Evacuation flow on the spectator stands of stadia and theaters which consist of complicated evacuation route, such as gangways and gate etc. are examined with the multi-agent evacuation simulator SimTread (MA model). Through those examinations, characteristics of evacuation flow are obtained which should be carefully considered when we make evacuation safety planning. Major results are as follows; 1) Evacuees tend to remain backward of the radial gangways. 2) Merging rate at the radial gangways, lateral gangways, and exit gates change according to the merging condition and with time. 3) The cause of characteristic observed in 1) is analyzed in mathematically. This characteristic is well approximated by multiplier effect of merging rate and adjusted calculation method is proposed. 4) Theatres of cinema complex which have pitched spectator's seats and have exits only lower area are needed careful consideration for the tendency that evacuees remain high place from the viewpoint of smoke exposure.
