How a 90-second power outage sparked chaos for rail commuters
A 90-second power outage might seem fleeting, but in the highly complex, interconnected, and safety-critical environment of a rail network, it can indeed spark widespread chaos for several key reasons: 1. **Signaling Systems Default to Safe (Red):** * **Immediate Impact:** The moment power is lost, all signals in the affected area automatically switch to red.
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Economy