Beijing, as the capital and a municipality of the People's Republic of China (PRC), is a transportation hub, with a sophisticated network of roads, railways and a major airport. Four completed ring roads encircle a city with nine expressways heading in virtually all compass directions, supplemented by eleven China National Highways.
Beijing Subway (Metro)
Main article: Beijing Subway
The Beijing Subway now has 9 lines, 228 km of tracks and 147 stations in operation. Subway travel is generally fast, clean, economical and during peak periods congested. On average currently around five million people ride the subway daily. By 2015 the city predicts daily ridership will increase to over 8 million journeys a day. A flat fare of ¥2 with unlimited transfers applies to all lines, except the express link to the airport, which costs ¥25. The electronic commuter fare card, Yikatong is accepted on all lines. The subway network is undergoing rapid expansion and that by 2015 the city will have 19 subway lines and 561 km in track length. This would make Beijing's subway system one of the largest in the world.