Dave Anderson on Nostr: Reading about in-cab signaling for trains, there's the usual stuff like having ...

Reading about in-cab signaling for trains, there's the usual stuff like having important signals repeated by a tone in the cabin.

Then there's a section titled "signal repetition by detonator." Hah, that's funny phrasing, I wonder what it actually means.

... no, it does actually mean signaling by detonator. For the most important signals, if you violate all the other safeties, a roadside box fires a blank cartridge to (presumably) wake the driver the fuck up. Amazing.