Practice question
What data does a high-resolution controller event log record?
- Only alarm events and maintenance records
- Timestamped records of every phase change, detector actuation, preemption event, coordination state change, and cabinet status event
- Only traffic volume counts by hour
- Only communication events with the central system
Answer: B — Timestamped records of every phase change, detector actuation, preemption event, coordination state change, and cabinet status event
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