I’d say a typical city block usually needs about four to eight public trash bins, but that’s a starting point, not a hard rule. The right number really depends on foot traffic, how much litter people generate, how far pedestrians are willing to walk to find a bin, and how often the city empties them. A practical guideline is to place a bin roughly every 75 to 100 meters along active sidewalks, especially near intersections, bus stops, food spots, and building entrances.
For a busy commercial block, I’d lean toward eight to twelve bins because people are constantly buying coffee, snacks, and takeout. A quieter residential block might need only two to four. If the block has a park, transit station, or nightlife cluster, add more bins and increase collection frequency. The real test is simple: if bins overflow regularly, the block needs more capacity or more frequent pickup; if most bins are half empty, the city may be over-placing them. In short, use four to eight as a baseline for a normal block, then adjust for traffic, waste volume, and maintenance.