You can get a feel from these two articles depicting the expulsion of migrants from Beijing which also has a population limit.

Campaign to Drive Out Migrants Slams Beijing’s Best and Brightest(https://www.nytimes.com/2017/12/11/world/asia/china-beijing-...)

Why Parts of Beijing Look Like a Devastated War Zone(https://www.nytimes.com/2017/11/30/world/asia/china-beijing-...)