File:SPAD Indicator diagram.svg
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Summary[edit]
| Description |
English: A diagram of a British railway signal, a "SPAD (Signal Passed At Danger) indicator", which is a signal that activates only when a train passes a red signal. Any train that is shown the lit signal must stop immediately. The top and bottom lamps flash, while the center lamp doesn't flash, when activated. After 1996, placing the word "STOP" on the center lamp was discontinued. |
| Date | |
| Source | Own work |
| Author | The Navigators |
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I, the copyright holder of this work, hereby publish it under the following license:
 
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This file is made available under the Creative Commons CC0 1.0 Universal Public Domain Dedication. |
| The person who associated a work with this deed has dedicated the work to the public domain by waiving all of their rights to the work worldwide under copyright law, including all related and neighboring rights, to the extent allowed by law. You can copy, modify, distribute and perform the work, even for commercial purposes, all without asking permission.
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 01:22, 28 December 2023 | | 470 × 775 (5 KB) | The Navigators (talk | contribs) | Uploaded own work with UploadWizard |
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