Abstract: A safety system is provided which uses sensors engaged to a person or their garments to measure light intensity or frequency or sound from a vehicle, to signal a processing circuit which determines a threat to a user. The system is configured to alert the user via haptic, visual or auditory alarms if measured lumens or sound correlates to a possible oncoming threat. Passive and active light-emitting surfaces on the garment can provide a warning or directional beacon to the vehicle.