Amtrak has a Twitter account that tweets out delays, including the reasons for them. It's almost always due to freight traffic: https://twitter.com/amtrakalerts

Amtrak has a Twitter account that tweets out delays, including the reasons for them. It's almost always due to freight traffic: https://twitter.com/amtrakalerts https://twitter.com/amtrakalerts Apparently the freight haulers have tried to get them to stop publicly blaming them like this.