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612 Work Zone Traffic Safety
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Backing Safety Solutions

Proximity Detection Systems

Tag-Based Systems. Another type of proximity detection system is an electromagnetic field-based system, which is a type of tag-based system. This system consists of electromagnetic field generators and field detecting devices.

  • One electromagnetic field-based system uses electromagnetic field generators installed on a vehicle and electronic sensing devices (a tag) worn by persons working near the vehicle.
  • Another electromagnetic field-based system uses field generators worn by persons working near the vehicle, with the sensing devices installed on the vehicle.

These electromagnetic field-based systems can be programmed to warn affected workers, stop the vehicle, or both, when workers get within the predefined danger zone of the vehicle.

Knowledge Check Choose the best answer for the question.

2-6. Which of the following backing safety solutions uses electromagnetic field generators and field detecting devices?