Check me if correct: added barrier=bollard just after the T cross. The access to the lateral parking in front of milani school is to be preserved entering from deledda/fattori/san giacomo streets on the south. The bollard prevents going through san giacomo only ( towards the north exit). San giacomo can be entered from north, up to the bollard, but the parking enter is blocked.

TO DO: Here there is a parking space and a road that arrives to the isolated house on south, on the right of the "A9" mark