Building extensive subway systems in large cities is the next focus for China's infrastructure building effort. China's prime minister, Li Keqiang supports "new urbanization, with people at the center." Building convenient mass transit for cities with subways and light rail is seen as a way to improve living in urban environments. Other related priorities are water supply, garbage disposal and more sidewalks. Subway lines reaching further into the fringes of cities helps push population out further and lead to less overcrowding and pressures on limited space in core areas of cities This also takes pressure off increasing automobile use inside the centre of cities, reduces overall automobile use in urban areas, and frees up money for consumers to spend on products other than automobiles. This fits in with the plan to urbanize China, by taking pressure off property prices, reducing air pollution from automobile use, and improving quality of life. It is also seen as a way to stimulate economic activity in the fringe areas as subways extend further to outlying urban areas. An example is the $300 million three station line to Kunshan, an extension above ground to Shanghai's subway, which is expected to connect with a line to Suzhou. China's cities have spent about 22% of the total debt of $1.76 trillion in 2010 on transportation infrastructure, according to national audit. The subway and light rail effort is taking place in 26 cities with new or expanding lines, according to the Transportation Technology Development and Planning Research Center. Subways charge much less in China compared to New York- 2 yuan or 30 cents compared to $2.50 base fare in New York city, and will need local government and state subsidies. ...