Four articles. According to official website of Chongqing University, Chongqing University Town has planned four light rail lines, namely Traffic 1 Line, Line 7, Line 13 and Line 17. Chongqing University, referred to as Chongda for short, is a national key university directly under the Ministry of Education of People's Republic of China (PRC), which is jointly established by the Ministry of Education, Chongqing Municipality and the State Bureau of Science, Technology and Industry for National Defense.