Seoul Buses - Bus Type

Bus Type

There are four types of buses:

• Trunk Bus (Blue) : This type of buses will operate at higher speeds and access the median bus lane connecting suburban areas to downtown Seoul. The city government is partly in charge of its operation. The city has taken full consideration to introduce 3 kinds of buses belonging to the Blue Bus category: articulated bus, CNG (compressed natural gas) bus with a low floor, and regular large-sized CNG bus. The blue color represents Seoul's skyline and Hangang (River) to symbolize security and freedom.
• Branch Bus (Green) : Green buses will be flexibly operated by private bus companies, to connect major subway stations or bus terminals outside downtown Seoul. It is similar with the city bus and the community shuttle bus currently in operation. Green stands for the mountains surrounding the city.
• Rapid Bus (Red) : The red buses will be express buses designed specially for those commuting between downtown Seoul and the metropolitan area. The color red exudes energy of speed.
• Circulation Bus (Yellow) : This bus will circle downtown Seoul and stop at stations for blue buses and major railway stations, as well as business, tourist and shopping areas. Yellow was selected for its dynamic and friendly image.

Route numbers specify area divisions. For Trunk and Branch Bus, the first digit indicates the area where the route begins, and the second digit indicates where the route ends. For Rapid Bus, the first digit is always 9, and the second indicates the area in which the route begins. The first digit of Circulation Bus indicates the area in which the bus circles. Route number which start with 8 indicates holiday/rush-hour only branch buses. For all lines, any remaining numbers are individual routes.