In my municipality the waste collection is "door to door" - no waste bin in the streets.
Waste segregation is: food and "green" from gardens - glass and plastics (separated lately in a dedicated plant) - paper - non segregated.
People are fined if they don't segregate waste properly.
Waste segregation (certified) reached 82% last year.
Where: near Pisa, central Tuscany.
There is one municipality near Lucca, Capannori, who was one of the first to join the so called "zero waste strategy", and actively promotes it.

As GarbatellaMike said, we have a certain system here in Rome, but whether people stick to it or not is another matter. Look into any of the supposedly differentiated street bins and they'll all contain plenty of stuff they shouldn't. For some people it's too much trouble to even put stuff IN the bins and they leave it on the pavement, and I'm not just talking about big stuff. For instance, for all too many the effort it might take to break down a cardboard box so it can be slotted into the right bin is enough to convince them it needs to go in the general rubbish bin, be left on the floor, or left perched on top of the paper recycling bin.
Sorry, I'm going off on one now...

The situation regarding waste collection is very varied around Italy. There are exellent situation and very poor ones. On the average, the best ones are in the north and the worse in the south. Big cities like Rome are in trouble for many reasons, one, for Rome, being the exixtance of the big landfill of Malagrotta and the consequent poor waste management policy. On the average, it is demonstrated anyhow that collecting waste on street bins cannot achieve a segregation higher than 40-45 %. The best results are obtained with door-to door collection, and the major cost of collection is paid by the better quality of collected waste.

Same here sadly. Some twunk recently left a dead depotted 4 foot tall tree by the bins.That's going to be there for ever!

In my experience most people round here make a reasonable effort at sorting waste and putting it in the right bins. It helps that glass, metal and plastic all go together. It drives me potty that our local council in the UK collects paper, metal and plastic but won't take bottles: they expect people to get in their cars and drive to a bottle bank. How green is that?
Household waste is one thing but sadly street litter is another...

Where's 'here'?
In our area of Rome they've just recently given us bottle banks, which means that glass should no longer go in with metal and plastic. Ha!

Same here, although we've had bottle banks as long as we have lived here so we are used to it. Kitchen waste isn't a problem with us, large garden, compost most things, dogs get the rest.

We had a bottle bank outside the Palazzo for about a week but it is gone now

We have five different communal bins for different types of waste: glass (and aluminium), plastic, paper, food waste and indiffernziata (the rest). Every so often you can add to that the big brown one for grass cutting/hedge trimmings/branches etc. as there are a lot of garden round our way. You have to do it all yourself of course thus we have as many rubbish bins at home.
Collection of each is fairly regular although sometimes you will find some of them full up. It's all a bit messy but it's a rare opportunity to see some kind of civic duty on the part of residents.

There are also three or four isole ecologiche in the suburbs where you're supposed to take bigger stuff in your own vehicle. You have to present them with a previous bill/fattura which has a barcode then you're weighed in and out and then you get a slip at the end telling you how much you've deposited. When it first started you'd get a tiny discount once a year on your bill but that's naturally disappeared, which is a pity because they certainly got to know me at ours when we moved house last year.