I can put an airtag in my suitcase and track it all over the world but railroad operators can't pit bearing temperature sensors on their tank cars full of methlamine?
If something can go out of spec 99 times out of 100 and nothing "bad" happens, you may not want a thing that makes you stop when it's out of spec.
It's not a good look, but that's often why it is done.
Same reason that militaries have strict non wartime limits on lots of their equipment, they know it can run past the norm but they also know there are risks involved, and you don't want to risk it until it's necessary.
In general, this is actually done: there are defect detectors that are installed along tracks that monitor for several conditions as trains pass over/through them. Once the train has passed, a voice radio message is sent to the train crew.
I'm astonished that they treat those alarms like I treated the check-engine light as a poor kid who reasoned that the car seems to still be running fine.
The same reason airlines don't put airtags onto passengers suitcases: it costs a lot of money for thousands of units, plus labour and time cost - money which could be going to someones bonus (or shareholders). Also, they don't really care if your luggage gets lost, just like rail companies don't really care about this specific derailment - as long as they are making more money from the "efficiencies"
Of course there is a movie ha ha. Thanks for that link. I guess it is part of the "Unstoppable" genre of movies huh? We have an unstoppable train, unstoppable bus, what else? An unstoppable car, truck, or plane?
