https://www.networkrail.co.uk/our-work/our-routes/wessex/north-downs-line-signalling-upgrade/
As part of the North Downs Line signalling upgrade, we're working between Shalford and Gomshall for a safer, more reliable railway.
north downs linenetwork railsignallingupgrade
https://www.nhpr.org/npr-blogs/2014-03-14/feds-say-new-yorks-metro-north-rail-line-values-punctuality-over-safety
The Federal Railroad Administration launched an investigation after a derailment in December that killed four passengers and injured 70.
north rail linenew yorkfedssaymetro