If you want residential parking for the block, you have to go around and encounter your neighbors. I don’t remember what the percentage, probably 50%, have to sign on to it. Literally sign your petition, with their addresses, to show the city that the community actually wants it. Same thing with speed humps. Walk around, talk to the neighbors, and get the signatures of about half of them. Just a vocal few can’t demand it, like some other things, it requires the consent of some of the other neighbors that don’t go to the civic or ANC, PSA, or district meetings.
I’ve remember going around to neighbors to get petitions sign for things I was against, like a zoning variance. A developer can gather the signatures of whomever happen to be around, and in our neighborhood that can include our loitering masses. Fighting it, meant knocking on doors, introducing yourself and talking with neighbors and convincing them that your cause is right and you really could use their support.
There are just some things that you need the community’s support and buy in for political cover (particularly for contentious topics where there is a sizable/loud contingent against the idea), and permissions (zoning, ABC licensing).