Practice question

What additional TTC measures are required for nighttime work zones?

  1. No additional measures beyond daytime setup
  2. Enhanced retroreflectivity on all devices, lighting of the work area, and retroreflective worker apparel (Class 3)
  3. Only additional speed reduction signs
  4. Only flashing lights on the work vehicles

Answer: B — Enhanced retroreflectivity on all devices, lighting of the work area, and retroreflective worker apparel (Class 3)

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Practice more: IMSA Work Zone Practice Questions - IMSA Work Zone Temporary Traffic Control Technician Certification Exam Exam →