1. Different construction time and scale: Hangzhou Metro started construction on 20 12. By August, 2023, there were 17 subway lines with a total mileage of 509 kilometers, making it the fourth longest subway system in China. Beijing subway started construction in 2004. As of August 2023, 28 subway lines have been opened, with a total mileage of 726 kilometers, making it the longest subway system in China.
2. Different operation modes: Hangzhou Metro adopts PPP mode, that is, the government and social capital cooperate to build and operate; Beijing subway adopts BOT mode, that is, the government sells franchise rights to enterprises for construction and operation.