A forklift pedestrian warning system alerts both sides at once through different channels. The operator gets an in-cab signal, usually a buzzer plus a light or display showing direction and distance. The pedestrian gets a vibration and beep from a wearable tag in tag-based systems, or sees a warning from lights on the truck, such as a blue spot or a red zone line projected on the floor. Some sites add fixed lights or signs at crossings that switch on when a truck approaches. Alerts usually escalate in stages as the gap closes, so a first warning prompts attention and a second prompts a stop.
The full guide is Forklift pedestrian warning systems, covering detection types and warning methods. Floor projections and truck lights reach everyone, including visitors without tags, but only where people can see the floor. Wearable alerts reach only tagged people, but they work around corners and in noise.
Check how the system handles routine close work, such as picking next to a truck, because constant alerts lead to alarm fatigue. OSHA 1910.178 does not require these systems; they add to separation, training and traffic rules rather than replacing them.