That's a great question that gets to the heart of practical urban living. There's no one-size-fits-all answer, as both approaches have strong pros and cons. The best choice often depends on the specific block's character.
Let's break it down. Having many small bins spaced closely together offers maximum convenience. Pedestrians are rarely more than a few steps from disposal, which drastically reduces littering from people who won't hold onto trash. It keeps sidewalks visually cleaner and can be ideal for high-foot-traffic areas like shopping streets or tourist spots. However, this setup costs more upfront and requires far more frequent, labor-intensive collection rounds. If collection lags, many small bins can quickly become many *overflowing* small bins, creating multiple nuisance points.
On the other hand, installing a few large, high-capacity bins reduces initial costs and streamlines collection. Sanitation workers have fewer stops, making routes more efficient. This can work well in residential areas or blocks with predictable, lower volume. The major risk is "distance to disposal." If the bins are too far apart, people will litter. A single overflowing large bin is also a bigger eyesore and health hazard than a small one.
The smartest solution is often a hybrid, data-informed strategy. Place larger, durable bins at key congregation points (bus stops, park entrances) and use smaller bins as connectors in between. The real key is reliable, adaptive collection schedules—using sensors (smart bins) to signal when they're full, rather than fixed times. Ultimately, the goal isn't just bin placement, but creating a system where waste disappears reliably from public view, encouraging everyone to use it.