Comment by progbits
3 days ago
> because automatically restarting a transmitter in an unmanned tunnel is not an acceptable failure mode
Why?
Also, surely they don't mean unmanned, who is listening to the AM emergency broadcast then?
3 days ago
> because automatically restarting a transmitter in an unmanned tunnel is not an acceptable failure mode
Why?
Also, surely they don't mean unmanned, who is listening to the AM emergency broadcast then?
I would assume because restarting would be saying "it's ok if the control system in our emergency transmitter sometimes fails, so let's just pretend it didn't happen and ignore it! yolo!".
I think a reasonable approach would be to have a redundant system, that gets activated if failure occurs in the first, and blasts a full alarm message to "abandon the tunnels, emergency system has failed!" type message.
If the emergency broadcast system fails, perhaps they need all the radio channels they use not to be jammed?