Acela train operator (6)
I believe the answer is:
amtrak
(Other definitions for amtrak that I've seen before include "US rail company" , "US transport manager" , "Passenger train service in the US" , "transport organisation" , "railway system" .)
I believe the answer is:
amtrak
(Other definitions for amtrak that I've seen before include "US rail company" , "US transport manager" , "Passenger train service in the US" , "transport organisation" , "railway system" .)