Taproots

-Bigger maps -A working Global Market -Levels of difficulty -A road pack, aka one way streets, overpass, pedestrian squares, boardwalks, gravel roads, stone roads, more bridges styles -Banks, Insurances -Religious establishments -16 maps regions all connected -More regions -Weather -Terraforming -More great works that are actually a challenge to build

The police AI is indeed retarded as they tend to pack 15 cars to chase 1 guy but you can easily follow the criminals that say ''Committed crime, going home''. When they get in their home just bulldoze it. Takes a day or 2 ( game days ) but they always end up catching them all anyway. Services need a better AI though I agree.

I had that happening to me when I played solo or duo with a friend. Took me a while but I figured it was simply because there was no other destination for sims to go to in the region! Just go to 1 or 2 of the connected by road maps and start temporary layouts real quick. All I do is I connect the highway, create about 2k residential + power+water+ city hall. Wait a bit, you should see a drastic change in that outside of your city traffic jam. It's not instant but it doesn't take long. If it's still not enough, do it on the other empty map that's close by. If you are playing multiplayers and there's people everywhere then it's your road layout.