In my area, BT had a major duct under a railway line with warning at ground level.
Network Rail came along during electrification and ignored the warnings - drilled down into the chanber and ripped out most of the cabling.
An exchange oneside provided FTTP & FTTC to properties the other side and a second major exchange was providing voice to the sunsidiary in te other direction. So people lost either voice or data - or in my case both (VoIP). All mobile operators had masive outages too!
So, under a railway is not always good!
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M H C
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