 In 2012, NDOR calculated traffic volume on its highways in terms of average annual daily traffic (AADT).N‑1 had as many as 2385 vehicles, including 115 heavy commercial vehicles, between Murray and its eastern terminus, and as few as 695 vehicles, including 75 heavy commercial vehicles, between its intersections with S‑13A and N‑50.N‑1 was originally designated in 1925 between Harrison and South Sioux City in the northern part of the state, replacing Nebraska Highway 79, Nebraska Highway 78, Nebraska Highway 77, Nebraska Highway 65, and Nebraska Highway 49.