With a metro card, people in Beijing can travel around the city easily. The Beijing transportation smart card, called yikatong, can be used on all subway lines, city-buses, some taxis and the Airport Express Train. People can get 60-percent discounts on city buses with the card. What' s more, the card can be used at some designated supermarkets, long-distance bus lines and the expressways in Beijing. The public telephones along Chang' an Avenue also accepts the card.