Walking speed reduction rates at intersections while wayfinding indoors: An experimental study

2020 ◽  
Author(s):  
Young‐Hoon Bae ◽  
Young‐Chan Kim ◽  
Ryun‐Seok Oh ◽  
Jong‐Yeong Son ◽  
Won‐Hwa Hong ◽  
...  
2018 ◽  
Vol 166 ◽  
pp. 396-403 ◽  
Author(s):  
Jinlu Sun ◽  
Yafei Guo ◽  
Changhai Li ◽  
Siuming Lo ◽  
Shouxiang Lu

2010 ◽  
Vol 66 (1) ◽  
pp. 27-39
Author(s):  
Yukio ADACHI ◽  
Yasuo FUJII ◽  
Dai TAMAGAWA ◽  
Yasuyuki IWASATO ◽  
Koichiro YAMADA ◽  
...  

2021 ◽  
Vol 562 ◽  
pp. 125369
Author(s):  
Xinjian Wang ◽  
Zhengjiang Liu ◽  
Jin Wang ◽  
Sean Loughney ◽  
Zaili Yang ◽  
...  

Author(s):  
Daewa Kim ◽  
Kaylie O’Connell ◽  
William Ott ◽  
Annalisa Quaini

In this paper, we present a computational modeling approach for the dynamics of human crowds, where the spreading of an emotion (specifically fear) has an influence on the pedestrians’ behavior. Our approach is based on the methods of the kinetic theory of active particles. The model allows us to weight between two competing behaviors depending on fear level: the search for less congested areas and the tendency to follow the stream unconsciously (herding). The fear level of each pedestrian influences their walking speed and is influenced by the fear levels of their neighbors. Numerically, we solve our pedestrian model with emotional contagion using an operator splitting scheme. We simulate evacuation scenarios involving two groups of interacting pedestrians to assess how domain geometry and the details of fear propagation impact evacuation dynamics. Further, we reproduce the evacuation dynamics of an experimental study involving distressed ants.


2021 ◽  
Vol 134 ◽  
pp. 105075
Author(s):  
Lidi Huang ◽  
Kaizhou Luo ◽  
Jiejing Xu ◽  
Xinxin Xu ◽  
Zhilong Dong

Author(s):  
Norio Baba ◽  
Norihiko Ichise ◽  
Syunya Watanabe

The tilted beam illumination method is used to improve the resolution comparing with the axial illumination mode. Using this advantage, a restoration method of several tilted beam images covering the full azimuthal range was proposed by Saxton, and experimentally examined. To make this technique more reliable it seems that some practical problems still remain. In this report the restoration was attempted and the problems were considered. In our study, four problems were pointed out for the experiment of the restoration. (1) Accurate beam tilt adjustment to fit the incident beam to the coma-free axis for the symmetrical beam tilting over the full azimuthal range. (2) Accurate measurements of the optical parameters which are necessary to design the restoration filter. Even if the spherical aberration coefficient Cs is known with accuracy and the axial astigmatism is sufficiently compensated, at least the defocus value must be measured. (3) Accurate alignment of the tilt-azimuth series images.


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