Why is "Signal passed at danger" trending?
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Trend Analysis
- Ranking position: #
- Date: 2026-04-01 09:06:31
This topic has appeared in the trending rankings 1 time(s) in the past year. While it does not trend frequently, its appearance suggests a renewed or concentrated surge of public interest.
Based on Wikipedia pageviews and search interest, this topic gained significant attention on the selected date.
Trend Insight
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Wikipedia Overview
A signal passed at danger (SPAD) is an event on a railway where a train passes a stop signal without authority. This is also known as running a red, in the United States as a stop signal overrun (SSO) and in Canada as passing a stop signal. SPAD is defined by Directive 2014/88/EU as any occasion when any part of a train proceeds beyond its authorised movement. Unauthorised movement means to pass either:a trackside colour light signal or semaphore at danger, or an order to stop where a train protection system (TPS) is not operational
the end of a safety-related movement authority provided in a TPS
a point communicated by verbal or written authorisation laid down in regulations
stop boards (buffer stops are not included) or hand signals
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Why This Topic Is Trending
This topic has recently gained attention due to increased public interest. Search activity and Wikipedia pageviews suggest growing global engagement.
Search Interest & Related Topics
Search interest data over the past 12 months indicates that this topic periodically attracts global attention. Sudden spikes often correlate with major news events, public statements, or geopolitical developments.