A configurable site safety system includes a plurality of wearable signaling devices, each with an array of independently addressable lighting elements, a location receiver and one or more communication interfaces. The system may also include a site safety server to track location information received from at least each of the signaling devices, and to cause, based on a subset of the plurality of signaling devices satisfying defined geographical, event-based or other defined criteria, the lighting array of each of the subset of signaling devices to display a defined lighting scheme.