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I'm not sure that is true. Anything on the rails has to inter-operate with rail traffic and control systems. A drone can inspect the track regardless of rail tr

by cpitman 11y ago

I'm not sure that is true. Anything on the rails has to inter-operate with rail traffic and control systems. A drone can inspect the track regardless of rail traffic.

jlarocco 11y ago
That, and wash outs or fallen rocks can block the tracks.