Dear Sir / Madam, I wish to know which of the subway line/s is / are in Chongqing is completely

Currently, there is no a line with all underground stations. The operational ones have underground stations and overheaded stations.

I was told that the difference between metro and LRT is the excessive passenger flows of a single trip during rush hour. The metro transports 30,000-60,000 people per hour and the LRT transports 10,000-30,000 people per hour. This is just for your reference.