Trying to figure out your cities economic zone is more productive.
...and whether the needed BUSINESSES are developed to occupied the building in the CITY CENTRE with PAY that commensurate with the real estate cost!
spend more time in that area is more productive.
I have seen how Hangzhou policeman clear away vagrants etc. during my visit there.
(please don't get angry with me for telling the obvious, China has achieve critical mass, now is to quickly unleash the people to take advantage of the critical mass!!!!!)
spend time to develop the businesses to occupy your city centre is more valueable.
Example CITY BANKs, CITY INSURANCE, CITY ACCOUNTANT, CITY SPECIALIST DOCTORs, etc. etc....