The big downtown construction projects are all pretty much finished in the late 90s and now new building is happening across the river. For this reason, unlike in Beijing where downtown is one giant effort to create the most possible dust, here the air quality seems to be better. I should check that out though since I just made it up!
I also ran across many streets in the old hutong style like Beijing’s but ‘inside’ the traffic pattern, as well as semi-modern housing blocks like this one, and then the huge apartment towers too. It’s a complicated place!