Korea has excellent public transportation. All means of transportation are clean and safe. They are almost always on time. They are also easy on the wallet. In the downtown area, the buses and the subway system are world-class. On the national scale, the KTX bullet train and and airplanes help to reduce travel time. Traffic cards can be used for most types of transportation. You can buy tickets online, or using smartphone apps. Apps can also be used to check the timetables for buses and subway trains. Notice boards at stations and bus stops are digital displays. They show the arrival time for the next train or bus, so it's very user-friendly. Korea is certainly one of the best places in the world to get around in.