How a 90-second power outage sparked chaos for rail commuters
A 90-second power outage might seem trivial, but in a complex and safety-critical system like a rail network, even a brief disruption can trigger widespread chaos. Here’s how: 1. **Safety Protocols Kick In Immediately (Fail-Safe):** * **Signaling Defaults to Red:** Rail signaling systems are designed to “fail safe.” If power is lost or a fault […]
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Economy