The street on which I live has just received some “curb bulges.” This was to slow traffic in an area where a crosswalk allows elementary students to get to their schools and parks.
This probably cost a few thousand dollars.
Given the speed of traffic down my street, the city could have saved themselves this money as the posted speed of 50 km/h is seldom honoured.
In truth, the city can pretty well remove all stop signs, speed limit signs, no parking signs, etc. as no one wants the city to waste money on unnecessary projects.