China is a country with a huge population; so many cities are very large in scale. Transportation problem is a headache for these cities. In Shanghai, the government is planning to spread the use of underground railway and light railway, which is clean and convenient. At present there are 5 underground railway lines running. By 2010, there will be 11 lines in total with a huge system of 400 kilometers. Besides, public bus system is well developed and taxi fare is reasonable. With so many choices available, it is up to you to choose any one of them when you want to go somewhere.