TY  - JOUR
AU  - Ye, Rui
AU  - Zhan, Zhonghao
AU  - Chraibi, Mohcine
AU  - Lian, Liping
AU  - Zhang, Jun
AU  - Song, Weiguo
TI  - Investigating the effect of stairs on the bidirectional movement of pedestrians
JO  - Journal of statistical mechanics: theory and experiment
VL  - 2020
IS  - 2
SN  - 1742-5468
CY  - Bristol
PB  - IOP Publ.
M1  - FZJ-2020-03084
SP  - 023405 -
PY  - 2020
AB  - Although bidirectional motion on stairs can be commonly observed for external stairs and in some transportation facilities, a study that aims to investigate pedestrians' walking characteristics under such conditions has never been conducted. In this paper, we perform a controlled experiment to study the bidirectional stair motion with varying flow ratios. It is found that on average, ascending pedestrians walk slower than those descending independent of the flow ratio. At the same density, the average velocity is the smallest for the full bidirectional flow when compared with those in the descending and ascending ones, indicating that the full bidirectional flow is not a simple combination of unidirectional pedestrians. According to the individual time to collision, congestion level and crowd danger, the run when the flow ratio is 0.5 can be considered to be the most critical with a large number of fierce conflicts. Thus, a balanced ascending and descending flow situation should be intentionally avoided for stairs where the bidirectional motion may occur.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000523277900005
DO  - DOI:10.1088/1742-5468/ab6b1a
UR  - https://juser.fz-juelich.de/record/884085
ER  -