land transportation
Refers to the transport of goods or passengers by land (trucks, trains, etc.), often used in contrast with sea or air transport. Common in compound terms like 陸運局 (Land Transport Bureau).
In this region, land transportation is the backbone of logistics.
Compare the costs of land and sea transportation.
陸軍 (りくぐん, the army) and 陸運 (りくうん, land transportation/shipping) sound similar but refer to completely different things.
Compound of 陸 (land) and 運 (transport), following the pattern of 海運 and 空運.