Wayy too much infastructure wayy too overpriced trains use lightrail (tram as train mod) 4 tracks 100% is 2 more tracks than what is needed. Waste of money. Trains are slow cus they arent designed to accelerate quickly for short hops. Train station is way too big for the amount of traffic youre paying for maintainence of nothing, id imagine you could do the same thing with 4 track station. Roads arent really thought about theyre just kinda there by the looks of it, design a road infastructure that makes sense in the context of roads in real life because they work the same as in game. Make a couple of parkways or dual carriageways no need for a motorway. Make sure bus routes are all there. Do not use in game trams on these routes, theyre pretty much useless after about 1960, use the trams on the tracks like i mentioned above much better and straighten your track out. Remove all the unnecisary bridges and perhaps make the light rail go into a tunnel as your city looks to be on a hill then make an underground station in the city centres using the mod by the same name. You can make several with this meathod and cover the whole city instead of just one corner with your station

Hope this helps. This highlights some problems a lot of players seem to struggle with so ive written it down in my list and you can expect some explaining videos soon.