The trains communicate wirelessly. The system is entirely underground, do theore... | Hacker News

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xobs on Dec 1, 2016 | parent | context | favorite | on: How the Singapore Circle Line rogue train was caug...

The trains communicate wirelessly. The system is entirely underground, do theoretically interference shouldn't have been an issue.

They shut off the mobile networks for a while to try and isolate the issue. It's interesting to read what was going on, though.

noisy_boy on Dec 1, 2016 [–]

I'm not sure if you meant just the communication system was underground but some sections of the routes go overground (e.g. a large section of East West line is overground).

ppurka on Dec 1, 2016 | [–]

This happened on the Yellow line, which is entirely underground.

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