Research indicates that solar activity poses a systemic risk to railway electrical and signaling systems in multiple nations, including the United Kingdom.

研究指出，太陽活動對包括英國在內的多個國家的鐵路電氣與號誌系統構成系統性風險。

The vulnerability of railway infrastructure stems from the interaction between solar storms and Earth's magnetic field, which can generate geomagnetically induced currents (GICs). In systems utilizing direct currents for train detection, these induced currents may precipitate signaling anomalies. Specifically, the inversion of signal states—such as a red signal transitioning to green—presents a critical safety hazard due to the high velocity of rail transit. Conversely, the transition of green signals to red, while less likely to cause immediate collisions, may result in operational paralysis and subsequent passenger endangerment should evacuations occur during electrical failures.

鐵路基礎設施的脆弱性源於太陽風暴與地球磁場之間的相互作用，這可能會產生地磁感應電流 (GIC)。在利用直流電進行列車偵測的系統中，這些感應電流可能會導致號誌異常。具體而言，號誌狀態的反轉（例如紅燈轉為綠燈）由於鐵路運輸的高速特性，會構成嚴重的安全隱患。相反地，綠燈轉為紅燈雖然較不容易立即導致碰撞，但可能會導致運行癱瘓，且若在電氣故障期間進行疏散，可能會危及乘客安全。

Historical precedents underscore this risk; Swedish records indicate signal failures during the 1930s, leading to systemic modifications in the 1950s, and a documented instance of signal switching in July 1982. Furthermore, Russian research has established correlations between solar events and signaling irregularities. Despite these occurrences, the transient nature of solar storms often precludes the identification of space weather as the causal agent during post-incident engineering assessments. Beyond signaling, the susceptibility extends to overhead line transformers, tilting mechanisms, radio communications, and satellite-based positioning systems. While the probability of extreme events is estimated at approximately once every three decades, the potential for a centennial-scale event remains a persistent variable.

歷史先例凸顯了這一風險；瑞典記錄顯示 1930 年代曾發生號誌故障，導致 1950 年代進行了系統性修改，且 1982 年 7 月有號誌切換的紀錄。此外，俄羅斯研究已確立太陽事件與號誌異常之間的相關性。儘管有這些事件發生，但由於太陽風暴的瞬時性質，在事故後的工程評估中，往往無法將太空天氣確定為致因。除號誌外，其影響範圍還延伸至架空線變壓器、傾斜機構、無線電通訊及衛星定位系統。雖然極端事件的發生概率估計約為每三十年一次，但發生百年規模事件的可能性仍是一個持續變數。

Institutional responses vary by jurisdiction. In the United Kingdom, academic collaboration between Lancaster University, Network Rail, and the Rail Safety Standards Board is currently underway to enhance systemic resilience. In Sweden, the Swedish Institute of Space Physics has noted a lack of official data regarding the frequency of these anomalies, although unofficial discussions regarding the cross-referencing of geomagnetic data with error logs have occurred.

各管轄區的制度反應不一。在英國，蘭卡斯特大學、Network Rail 與鐵路安全標準委員會目前正開展學術合作，以增強系統韌性。在瑞典，瑞典太空物理研究所指出，缺乏關於此類異常現象頻率的官方數據，儘管已有關於地磁數據與錯誤日誌交叉比對的非正式討論。

Railway systems remain susceptible to solar-induced electrical disruptions, necessitating the implementation of more resilient infrastructure to mitigate potential safety risks.

鐵路系統仍易受太陽引起的電氣干擾影響，因此有必要實施更具韌性的基礎設施，以降低潛在的安全風險。