Watching the Netflix show, it seems implied that everything more or less takes place in Hell's Kitchen (from the "Devil of Hell's Kitchen" name to the locations given here and then in terms of block and street number, to the blueprints we see in some episodes).
It makes sense, since Daredevil operates on foot almost all the time, and, well, it takes a while to even cross Manhattan.
Yet, we see Karen or other characters hail cabs; Stick uses a car (with a driver); the Russians mostly travel by car; and at the end of the first season, there is a pretty long sequence involving a FBI/Police convoy that lasts for a few minutes.
Now... Hell's Kitchen is roughly twenty by four blocks. It's small. If really the bulk of the show takes place in there, how can there be (a) that many gangs and criminals operating only in that area? (b) that much use of cars and trucks? (c) that much money for criminal to fight about, in real estate/drug/whatever?
I mean, really, it's... small.
Image from Wikipedia.