Method of Experimental Research of Evacuation of Mixed Flows of People of Different Mobility Groups

Abstract

The article analyses the current state of research on the evacuation of a mixed flow of people with the presence of persons of different mobility groups (M1, M3, and M4) as part of mixed evacuation flows. A methodology project was developed, and experimental studies were conducted on the evacuation of a mixed flow of people with the presence of persons of different mobility groups to determine the parameters of their movement, including the density of the human flow, the time of following, the delay time at the door, and the average speed of the participants of the experiment, with the subsequent calculation of the evacuation time. The methodology provides for the simulation of various options for evacuating people during a fire in a separate part of the building. The article considers options for possible formations of human flows during evacuation when multiple M3 and M4 mobility groups are present, each with different percentage distributions. The obtained data were entered into the empirical database sorted into variational series based on increasing density. For each interval, the mathematical expectation was calculated, representing the arithmetic mean value for normal data distribution. The indicated results will make it possible to create empirical tabular data on the movement parameters of mixed evacuation flows. This data allows for the establishment of the dependence between the movement speed of the evacuation participants and the flow density. Addressing this scientific problem will facilitate the derivation of the dependence of the average value of the speed of the free movement of the flow of people (V0) and the density of the flow (D0), after reaching which an increase in density leads to a decrease in speed, on the quantitative composition of participants in the movement of mobility groups M1, M3, M4 and the coefficient of adaptation of the human flow to changes in its density during movement with different percentages of participants of mobility groups M1, M3, and M4. Keywords: low-mobility population groups, evacuation flow, evacuation, flow density, people with disabilities.

Improvement of the methodology for determining the movement parameters of individuals with visual impairments during evacuation from higher education institutions with inclusive education using a simplified analytical model

“…As part of the experiment, dynamic video recording was used, in which the video recording of the process was carried out directly by several participants of the evacuation. For data collection, camera recordings were synchronized [16].…”