Amtrak is going back to the future for a while and will be using the old route until PTC is installed on the 'new' one. Quotes because the ' new" line has been around a long time and one of the bridges was built in 1936 !!!
See
https://www.seattletimes.com/seattle...-are-in-place/
Also, to those of us old enough to remember it wasn't unusual to have two or three people in the cab of a locomotive and then ended when they did away with feather bedding
Bob H