Study on the Influence of Pedestrian Behavior on Emergency Evacuation at the Stairs in High-rise Buildings
In order to study the influence of the pedestrian behavior on the emergency evacuation at the stairs in case of dense-ly populated places scenarios,the movement characteristics and basic motion parameters of individual and group of pedestri-ans at the stairs in a nine-story building were collected through on-site observations. the social force model and AnyLogic 8.3 software were used to simulate the building evacuation time and stairs congestion. The results show that the speed at the stairs is inversely proportional to the pedestrian density,the speed upstairs is significantly affected by the flow density,the difference of the speed going downstairs between male and female is significant,and the discreteness of the male speed is more than that of the female speed;that the mid-level platform of the stairs is the primary congestion points during evacua-tions;and that the fourth floor of the building is the most congested place,causing a noticeable delay for upper-level occu-pants to descend from it and leading to an increased evacuation pressure. It is suggested that evacuation guides are arranged on intermediate floors of high-rise buildings to provide necessary assistance and guidance to the crowd.
high-rise buildingemergency evacuationstairpedestrian characteristicsocial force model