Because there are more people renting houses. The main reason for the high rent of Shanghai 18 line is that 18 line will pass through many schools, including Shanghai University of Finance and Economics and Fudan University. The line setting is very special, and more college students will be willing to rent a house. The market is hot, so renting is more expensive. Shanghai Metro Phase I 18 line is 36.8 kilometers long, all of which are underground. * * * There are 26 stations, all of which are underground stations; The train adopts 6 A-type trains.