Practice question

What is the 'effective green time' in signal timing calculations?

  1. The total green time displayed on the signal head
  2. The actual usable green time accounting for start-up lost time and end gain during yellow
  3. The green time remaining after subtracting pedestrian intervals
  4. The green time allocated to the coordinated phase only

Answer: B — The actual usable green time accounting for start-up lost time and end gain during yellow

The correct answer is shown above. Try the full quiz for additional practice.

Practice more: IMSA Traffic Signal III Practice Questions - IMSA Traffic Signal Senior Field Technician Level III Certification Exam Exam →