At Edgware Road sub-surface line tube station there is obviously a CCTV camera pointed at the next train information display boards to allow monitors like this to effectively act as repeaters. I can only presume that this is cheaper than installing another set of display boards or setting up a conventional information monitor.
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Photo by <a href="mailto:cmckenna@sucs.org?subject=rail-photo at railfaneurope.net">Chris McKenna</a> 31/05/2006.<br>
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