The merging of pedestrian streams is a common phenomenon in pedestrian traffic and evacuation. However it is prone to stampede and can cause immense human and economic damage because of the unreasonable merging strategy. This paper establishes a bidirectional pedestrian flow merging model based on social force model to study the effect of the ratio of the branch inflow to the total inflow on evacuation efficiency of pedestrian merging at a T-junction. The moving characteristics of pedestrian, pedestrian average speed and maximum value of density in different ratios were acquired. The most favorable ratio for evacuation was obtained by the thorough analysis. The results of this work can provide some references for controlling the merging of pedestrian streams at T-junctions during evacuation, and is contribute to propose some related controls and optimization measures to ease the congestion causing by merging, thereby increasing the evacuation efficiency.
Chen, M. M., Wang, J. H., Zhi, Y. R., & Gao, L. J. (2018). Effect of the Ratio of the Branch Inflow to the Total Inflow on Evacuation Efficiency of Pedestrians Merging at T-junctions. In Procedia Engineering (Vol. 211, pp. 70–77). Elsevier Ltd. https://doi.org/10.1016/j.proeng.2017.12.139