Influences of exit and stair conditions on human evacuation in a dormitory

► Good agreement is achieved between the predicted results and experimental results. ► The larger the exit width, the earlier the stratification phenomenon appears. ► When exit width is more than 2.0 m, the evacuation times show almost no change. ► The judgment that the existence of stairs causes flow stratification is reasonable. ► The smaller the width of BC, the earlier the stratification appears.