Traffic Signals > Operation of Signals

Types of Control

• Fully Actuated
• Semi Actuated
• Pedestrian Actuated
• Special Signals
• Emergency Modes
  • Fire Preemption
  • Train Preemption
• Failure Modes
  • "Flashing"
  • "All Out"

• Metal Detection "Loop" Description
• Positioning your Vehicle for Detection
• Loop Malfunction Modes "Fail Safe"
• Detection Timings Explained

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