When an entire transport location is divided into several zones, a fixed rate is applied to each zone regarding the transportation within the fixed zone. At this time, the fixed rate applied within the specific zone is known as Zone Rate. The division of each area does not always follow the transportation distance. It is often decided in favor of transportation companies considering factors such as transportation density. For transportation to other areas outside the relevant zone, the rate of that area is added.
Source : National Logistics Information Center of Korea