Transport in South Korea roads and various classifications below the national level. Almost all freeways are toll highways and most of the expressways are built, maintained and operated by Korea Expressway Corporation (KEC). The freeway network serves most parts of South Korea. Tolls are collected using an electronic toll collection system. KEC also operates service amenities (dining and service facilities) en route. There are also several privately financed toll roads. Nonsan-Cheonan Expressway, Daegu-Busan Expressway, Incheon International Airport Expressway, Seoul-Chuncheon Expressway and parts of the Seoul Ring Expressway are wholly privately funded and operated BOT concessions. Donghae Expressway was built in cooperation between KEC and
Multicultural family in South Korea some cases, refugees escape North Korea with their family members, but policies are also designed for those who start a new family in South Korea. The final category includes ethnic-Korean families who were born and raised in China or Russia with a unique Korean culture, and settled in South Korea for the purpose of immigration, employment while their ancestors left Korea with various background. Children of multicultural families are defined as children born between spouses of Koreans and foreign residents with different cultural background. At first, children of multicultural families were called "Kosian" or mixed-blood. Later, people started to use