First of all, considering the geographical location: the boundary of Chengdu Plain starts from Longquan in the east, ends at Meishan in the south, ends at Pengzhou and Chongzhou in the west, and ends at Guanghan and Jintang in the north, it is not difficult to see that only the southern part of Chengdu Plain has the largest area, the widest area and a relatively small population.
Economically speaking, Deyang and Mianyang in the north experienced an industrial revolution, which belongs to the development of heavy industry and is not suitable for the development of light industry with service industry and high-end technology as the mainstay. Pengzhou Petrochemical is also the biggest obstacle to its development in Pengzhou in the west.
Longquan in the east is an industrial city that mainly produces cars, and it is not suitable. South High-tech Zone is an Internet-based park, and Shuangliu can provide good transportation facilities, which is most suitable for building the second city.
Third, militarily, I can't say more about this. I can only say that there is an army of Peng in the west, a large arsenal in the north and an army of Ji 'an in the east, which is expanding the dual-use airport. And the south.
There is nothing to say politically.