city stop growing

[yanyatcheng 1]

I've been playing with my main city, reached 260 000 population and have highway/subway/industrial railroad system. But now, sims stop getting in my city (no demand on low/mid/high wealth).

health/safety/mayor rating is the highest, every sector is covered with fire/police/hospital, and there's medium sky scrapers (3x3) all over the city, but it stop expand after I hit that population.

I have enough high tech industry (1/10 of the land used for industry) to support the commercial, but seems the low tech industry are always needed.

I got 3 city (2 industrial only and 1 normal medium wealth) connecting and 5 more that have air/ sea connection.

 

what do I need to boost the city up again to build higher skyscrapers and grain more population?

[A Nonny Moose 8,261]

Sounds like you've been capped.  Find enough ground an put in a Maxis airport (big commercial cap relief), and a few parks (residential cap relief) and see what happens.

[SimCoug 5,973]

Without seeing an image, I'm going to guess that your big tile with 260k pop is full of skyscrapers and such... in order to support all that development you will need plenty of surrounding tiles full of residential (of all wealth, not just $$ and $$$) as well as jobs (commercial or industrial).  For every stage 7 and 8 building, you need lots of lower stage development to support it.  For example, even in the highest commercial threshold, only 20% can develop into stage 8 skyscrapers.  That means 80% of your commercial buildings will still be in stages 1-7.  The same general principle holds true for residential development.  Check out this RippleJet post for a more detailed explanation. 

[yanyatcheng 1]

thanks alot, the international airport helps alot and boost population by 50 000, and keep climbing

btw, can I erase all my heavy industry and make them high tech? my high tech industry keep having alot of demand, don't know if it will do negative to low wealth jobs after I erase them all

[A Nonny Moose 8,261]

Because of lingering pollution, hi-tech industry cannot replace dirty industry.  I-HT has the same requirements as CO$$$ so needs to be in a clean area.