That's an excellent and very practical question. For a very high-traffic urban area—think a major public square, a busy transit hub, or a popular downtown street—capacity is your primary defense against overflow and litter. I would strongly recommend looking at trash receptacles with a minimum capacity of 50 gallons (190 liters), and ideally moving up to 65 or even 95 gallons (246-360 liters) for the busiest spots.
The logic is simple: larger capacity means fewer change-outs per day. In a high-traffic zone, a standard 30-gallon can might fill up in just a couple of hours, leading to unsightly overflow that defeats the purpose. A 50+ gallon bin can handle several peak hours, allowing for a more manageable and cost-effective collection schedule, perhaps just 2-3 times daily.
However, capacity alone isn't the whole answer. You must pair it with durability. Look for heavy-gauge steel or thick, commercial-grade plastic construction. Features like a sturdy, locking lid (to deter scavenging and reduce odors), a wide opening for easy use, and a secure anchoring system are non-negotiable for public areas. Consider units with multiple openings for recycling alongside trash to streamline waste sorting.
Placement is also key. Even the largest single bin can be overwhelmed. A strategic cluster of 2-3 high-capacity units is often more effective than one giant receptacle placed in a corner. Position them where pedestrian flow naturally pauses—near benches, food vendor lines, or building entrances.
In summary, for a true high-traffic urban environment, start your search at 50 gallons and prioritize commercial-grade, vandal-resistant models. Investing in the right capacity upfront saves on labor costs, maintains cleanliness, and keeps public spaces welcoming.