[jazzyjackson]

Used to be 55mph, it was lowered to 40 tops after an accident in 1995, some places the limit is 15mph

"The Trains Are Slower Because They Slowed the Trains Down"

https://www.villagevoice.com/the-trains-are-slower-because-t...

Similarly there's a top speed of 79mph on the rest of the country on most passenger rail since the Naperville Train Disaster of 1946

https://en.m.wikipedia.org/wiki/Naperville_train_disaster