Nanjing Metro Line 1 is the first river-crossing line of Nanjing Metro, which was officially put into operation on July 1, 214, and its logo color is champagne. Metro Line 1 passes through Pukou District, jianye district and Yuhuatai District. The line starts from Yushan Road Station in the west, passes through Pukou New City, passes through the Yangtze River and enters Hexi New City, and reaches Andemen Station in the east. Extension conditions are reserved at the east end of the line. The total length of the first phase of Line 1 is 23.6 kilometers, the underground line is about 19.5 kilometers, and the ground line and overhead line are about 2.1 kilometers. * * * Set up 14 stations, including 13 underground stations and 1 elevated station; The train adopts 6-section A-type trains. With a total length of 3,6 meters, the river-crossing tunnel on Line 1 is a subway tunnel with the longest excavation distance, the deepest burial depth, the highest water pressure and the largest diameter in China. 1 As of September 215, the average daily passenger flow of Nanjing Metro Line 1 was about 12, passengers. On October 3, 215, 157, passengers were the highest single-day passenger traffic of Metro Line 1.