Comment Re:Because (Score 2) 103
I totally agree. I'd also point out that there is a time-proven backup that we've used in the US and probably Europe for 100 years. If a train stops off-schedule, a trainman grabs a handful of flares and torpedoes (small pouches filled with dynamite that are strapped to the rail. They bang real loud when run over and are a signal to the engineer to stop) walks or runs a mile down-track and uses the flares and torpedoes to stop any approaching train well before it can hit the stopped train.
Why wasn't this simple, low-tech solution used that every trainman in the US knows and is required to use?