Railroads have long been a key industry for Arkansas, with North Little Rock today being the home of one of the largest rail yards for Union Pacific.
The sprawling grounds are busy 24 hours a day with arriving and departing freight trains.
It’s a complicated process, sorting rail cars that arrive from all over the country, changing crews and servicing the equipment.
Directing the action from the top of a tower in the center of the yard is General Yard Master Robby Robelot. He says the biggest challenge is coordination and timing.