Here’s how I’d approach it in a real downtown, not just on paper. Start by estimating how much trash is actually generated in your downtown core each day. You can do that by counting current bins, checking how often they overflow, and asking collection crews for bag or weight estimates. If you don’t have data, run a short waste audit over a typical week and a busy weekend.
Then use a simple capacity formula: Daily waste volume ÷ (usable capacity per can × collections per day) = minimum number of cans. For example, if downtown produces 1,000 gallons of litter and general waste daily, each can holds 32 gallons but only about 25 gallons is usable, and cans are emptied twice a day, you need roughly 1,000 ÷ (25 × 2) = 20 cans—before buffers. Add 15–25% extra for peak events, tourism, and error.
Next, adjust for placement. In high-foot-traffic zones, I’d plan bins every 150–250 feet near corners, transit stops, food areas, and crosswalks. In quieter stretches, 300–400 feet may be enough. But capacity should win over spacing: if a block fills bins fast, add another can even if the distance looks fine.
Map hotspots using foot traffic counts, litter surveys, business input, and overflow complaints. Separate recycling or compost streams if your program supports them. Also check collection access, accessibility, and maintenance. Finally, pilot the plan for 4–8 weeks, track overflow and pickup loads, and adjust. The right number isn’t permanent—it changes with events, seasons, and downtown growth.