The man was walking on the tracks with his back to an on-coming train, said Union Pacific spokeswoman Raquel Espinoza.
The train engineer sounded the horn and the man appeared to acknowledge the warning and stepped off the tracks, she said He continued walking alongside the tracks but too close--and was hit by the train.
Engineers called medics to the scene where the man was treated and then taken to UAMS, she said.
Espinoza said this unfortunate incident underscores how dangerous it is to be on tracks and to cross tracks outside established intersections.
North Little Rock police said a railroad agent told them the man did not appear to have life-threatening injuries.