Old Dominion Freight Line operates a less-than-truckload trucking network, moving freight shipments that are too small to fill an entire truck by consolidating multiple customers' shipments onto the same trailers. This business model requires an extensive network of terminals where freight gets sorted and transferred between trucks, giving established carriers like Old Dominion a significant scale advantage that new entrants struggle to replicate quickly. The company has built a reputation for service reliability and on-time delivery in an industry where damaged or delayed freight can be costly for shipping customers, letting it charge premium rates relative to some competitors. Old Dominion's revenue and volumes track broader industrial production and retail activity, since less-than-truckload freight demand rises and falls with how much manufactured goods and retail inventory businesses are shipping.