Easy solution.
If kids are rowdy in my street, i will go and tell their parents.
If on the other hand the parents backanswer me, then they will answer to me, i know it sounds like i'm being a bully, but i know the police affectivly do next to nothing, so going to the parents house is the next best thing, i've done this on a number of occasions, and apart from the odd idiot who has tried to mug me off but failed miserably, they come around to my thinking.
Ps, its not all that bad, as some of the kids i now let wash my car {paying them of course} and i get the occasional hello's and good morning of some of the mums & dads, so i feel i'm doing my little bit for society by bringing the neighbourhood togeather