Parallel to the streetcar tracks along the riverfront are train tracks. Trains do run on these tracks (very noisily I might add). The train that we saw was a freight train.
AMTRAK does run to New Orleans daily to the Union Passenger Terminal at 1001 Loyola Ave.
By Air : Louis Armstrong International Airport is 21 miles northwest of downtown New Orleans in Kenner. Taxis are available and there is a shuttle service from the airport to hotels in the CBD area.
By Train : Three Amtrak trains pass through or terminate in New Orleans. All Greyhound buses and trains both arrive and depart from Union Passenger Terminal which is located at 1001 Loyola Avenue, downtown.
By Car : From the Houston, Galveston and San Antonio into New Orleans, take IH 10. From Shreveport, LA take IH20 to Lafayette, then IH 10.
By Ship : Two cruise lines call into New Orleans as part of their week long cruises. They are Carnival and Royal Caribbean.
The best way is have a friend take you, but I would go by train if I could. The train station is right downtown. The airport is in Kenner and a 45 minute drive away.