It is helpful to enhance Hangzhou's international popularity and reputation. G20 Summit will make people all over the world pay attention to and understand Hangzhou, which will greatly enhance its popularity and reputation.

This is helpful for Hangzhou to introduce foreign capital. Attracting investment is the main carrier to increase new resources, new elements and new impetus. Docking global high-quality industries, promoting economic transformation and upgrading and regional coordinated development.

It is helpful to improve the environment and traffic in Hangzhou and improve the quality of urban life. Improve the happiness index of Hangzhou citizens.

There are also some negative effects, which cause short-term inconvenience to the living order of residents.