Crowds among shoppers, a day nobody had opened

Among real shoppers in the ATC shopping centre in Osaka, the same crowd, unchanged, beat both social force and people who ignore each other on walking speed, spacing, path straightness and close contacts in all six three-minute windows of the day, where five were needed. Shoppers wander, so where they enter and leave says little about their path: a harder test than a corridor. Registered before this day was opened; shoppers tracked by range sensors.