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
Owned-and-operated station affiliation agreement; for instance, network programming is very rarely preempted by O&Os, despite individual affiliates' rights to do so. The term "station" correctly applies to the ownership of the station. For example, a station that is owned and operated by the American Broadcasting Company (ABC) is referred to as an "ABC station" or an "ABC O&O," but normally should not be referred to as an affiliate. Likewise, a station not owned by ABC but contracted to air the network's programming is correctly referred to as an "ABC affiliate"; that is, the station is "affiliated" with ABC. However, informally or for