Prospective brides and their hovering mothers, sisters, and friends lined up the night before the doors opened at 8:00 a.m., to join the crush. Most "bridal groups" wore the same color shirts and communicated with each other using whistles or bells, in order to help locate one another.
The scenario describes a large gathering of individuals waiting for an event, specifically brides and their support network, who are organized into groups and use specific communication methods to aid in finding one another.