1: "Rail chaos fears as solar storms could disrupt signals."

2: "Solar storms pose risk of accidents on rail tracks."

3: "Prepare for potential signal failures due to solar activity."

4: "Stay informed about solar storms impact on train safety."

5: "Protect railways from solar-induced signal disruptions."

6: "Solar storms raise concerns for rail signal reliability."

7: "Plan for potential chaos on tracks during solar storms."

8: "Solar activity could lead to dangerous rail accidents."

9: "Mitigate risks of signal failures caused by solar storms."

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