Abstract
In this study, pedestrian crowd dynamics at corner turns were investigated by analyzing pedestrian trajectories in a subject experiment for building more reliable, general-purpose, pedestrian simulation models. An experiment under laboratory conditions was conducted wherein a pedestrian crowd walked straight for a short distance before turning into a right-angled corner built with partition walls; the opposite sides were unwalled. Trials were performed with different widths and densities of initial participant positions. Finally, the trajectories of the pedestrians were extracted from a video through computer image analysis. The results demonstrated that pedestrian behavior at corner turns depends on lane position, lane distance (from the wall), and crowd density.
Highlights
This study aimed to elucidate pedestrian dynamics at corner turns through a subject experiment for more reliable, general-purpose pedestrian simulation models
Pedestrian crowd dynamics at corner turns was clarified by analyzing pedestrian trajectories in a subject experiment
The results showed that pedestrian behavior at corner turns depends on lane position, lane distance, and crowd density
Summary
Background Pedestrian crowd simulations have mainly been developed in the field of architecture for evacuation safety evaluation and space capacity estimation. For such purposes, flow rates at a bottleneck and congestion in crowded situations play a major role. In some evacuation simulation models with potential fields, agents congest too heavily —or even stack— at a corner because they move straight toward an exit, ignoring other possible conditions. These false stacks eventually preclude the correct congestion evaluation of a plan. Crowd behavior at a corner should be modelled based on real pedestrian behavior
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