That's an excellent question for anyone managing a public walkway! For a long boardwalk, the general rule of thumb is to place outdoor trash cans every 100 to 200 feet (30 to 60 meters). This distance isn't arbitrary; it's based on the average distance a person is willing to carry a piece of litter before discarding it improperly.
However, the ideal spacing depends heavily on specific factors. In high-traffic areas near entrances, scenic viewpoints, or seating benches, you'll want cans as close as 50-75 feet apart. People tend to congregate and generate more waste in these spots. For quieter, linear sections of the boardwalk, the 150-200 foot range is often sufficient.
The key is visibility. A person should always be able to see the next trash can from their current location. This visual cue encourages proper disposal. Also, consider maintenance logistics. Space cans at intervals that align with your collection team's route and schedule to ensure consistent service.
Ultimately, observe visitor behavior. If you notice litter accumulating between bins, you need more. A good starting point is every 150 feet, then adjust based on real-world use. Proper spacing reduces litter, improves visitor experience, and makes your maintenance crew's job much easier.