1: "Rail chaos feared as solar storms threaten signal failures."

2: "Experts warn of potential accidents due to solar storm disruptions."

3: "Prepare for possible signal failures during solar storm activity."

4: "Solar storms could lead to safety risks on railway systems."

5: "Stay informed about solar storm impacts on rail operations."

6: "Mitigate risks of accidents with solar storm signal failures."

7: "Plan ahead for potential disruptions from solar storm activity."

8: "Ensure safety measures in place during solar storm threats."

9: "Be vigilant for rail chaos during periods of heightened solar activity."

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