The coal trains aren't popular. There still are some surface level crossings where you can wait forever for the train to pass.
Just about...
This one is paved in the downtown area but east of town it's gravel but fairly smooth.
Amtrak has been on life support for a long time. I briefly worked for Penn Central when they were going under. You had to have money in your account before the bank would cash your paycheck. Amtrak took them over with all the problems. The tracks were a mess as was the rolling stock. There were a number of the '50s streamliner engines that were scrapped because nobody wanted to work on them.
Amtrak did eventually get the tracks back in shape but only on the eastern corridor.
The US would rather cut its nose off to spite its face.