Suchergebnisse

Crowd density is a key factor that influences the moving characteristics of a large group of people during a large‐scale evacuation. In this article, the macro features of crowd flow and subsequent rescue strategies were considered, and a series of characteristic crowd densities that affect large‐scale people movement, as well as the maximum bearing density when the crowd is extremely congested, were analyzed. On the basis of characteristic crowd densities, the queuing theory was applied to simulate crowd movement. Accordingly, the moving characteristics of the crowd and the effects of typical crowd density—which is viewed as the representation of the crowd's arrival intensity in front of the evacuation passageways—on rescue strategies was studied. Furthermore, a "risk axle of crowd density" is proposed to determine the efficiency of rescue strategies in a large‐scale evacuation, i.e., whether the rescue strategies are able to effectively maintain or improve evacuation efficiency. Finally, through some rational hypotheses for the value of evacuation risk, a three‐dimensional distribution of the evacuation risk is established to illustrate the risk axle of crowd density. This work aims to make some macro, but original, analysis on the risk of large‐scale crowd evacuation from the perspective of the efficiency of rescue strategies.

In this study the Chinese version of the 16 Personality Factor Questionnaire (16PF; Cattell, Eber, & Tatsuoka, 1970; Dai & Zhu, 1988) was used to investigate the personality traits of 59 Chinese medical peacekeepers in Lebanon. Survey data were compared among 59 peacekeepers,
62 military personnel (control group 1), and 58 medical workers (control group 2). The social boldness, and abstractedness scores of peacekeepers were significantly lower than those of the military and medical worker groups. A secondary factor analysis of the 16PF revealed that the cowardice/decision
scores of the peacekeeper group were between the scores of the other 2 groups. The peacekeepers showed lower warmth, social boldness, and abstractedness and higher self-reliance in personality traits. The results suggest that for future peacekeeping missions psychological personality selection
should be conducted to recruit military personnel with higher scores of warmth and lower scores for self-reliance.