I used to be a railway signalling guy. AMA
How much (if you know) do the details vary by country?
If you were ever involved in a grade crossing fatality case, what was that like? (Professionally - not prying at your personal feelings. Answering optional.)
Same system as US. Similar operating rules. Other countries have different rules including track gauges (width). Canada’s:
https://tc.canada.ca/en/rail-transportation/rules/2022-2023/...
“Fun” fact, the rules were metaphorically written and blood, and grew to include things like “don’t microwave your clothes to dry them”.
Everyone who had worked in the rail industry (especially conductors and engineers) for more than a few years has horrible stories. PTSD is real. Suited by train is fucking selfish and disgusting.
It’s an amazing job when young and you can see lots of remote beautiful locations. Very high divorce rate…
Moved to Nuclear which is similar in that small mistakes can have catastrophic consequences. Nuclear has more layers of redundancy (technical and administrative). Railway has half the people doing 1.5 times the work as it did 30 years ago - nice profits though, Things changed when Hunter Harrison gutted/streamlined. https://en.wikipedia.org/wiki/E._Hunter_Harrison