This CNN story goes into more depth about the route history, planning, and operations of the history-making Oct. 29, 2022 100-coach Albula Line memorial excursion, the world's longest-ever passenger train.
https://www.cnn.com/travel/article/w...and/index.html
Why Switzerland built a 2-kilometer-long train
(CNN) — High in the Swiss Alps, St Moritz made its name as a place for pushing the boundaries of winter sport. By the time it hosted the second Winter Olympics Games in 1928 its reputation as a playground for wealthy adventurers was already well established.
On Saturday, the region continued its long tradition of expanding the limits of what is possible with an epic world record attempt -- not on snow or ice, but on rails.
To celebrate the 175th anniversary of Switzerland's first railway, the country's rail industry came together to run the world's longest-ever passenger train -- 100 cars, 2,990 tonnes and almost two kilometres long.