That's an excellent and quite specific question! It shows you're observant about the urban environment. The short answer is yes, such bins do exist and are becoming more common, though they aren't on every street corner yet.
You've likely experienced the classic, jarring *BANG* of a heavy bin lid. To combat this noise pollution—especially in sensitive areas like residential streets, hospital zones, parks, and near offices—manufacturers have developed several clever "quiet-close" or "soft-close" designs.
The most common mechanism is similar to a hydraulic damper or soft-closing hinge you might find on a kitchen cabinet or toilet seat. As the lid falls, it engages a piston or damping system that controls the speed of descent, bringing it to a gentle, silent close in the final inches. Other designs use weighted lids that fall slowly or rubberized seals and bumpers around the rim to cushion the impact.
The primary benefits are clear: reduced noise pollution for a more pleasant public space, less startling for pedestrians and wildlife, and potentially less wear and tear on the bin itself from constant slamming. You'll most often find these in noise-conscious districts, upscale business areas, parks, and outside buildings where quiet is valued.
So, while the standard loud bin is still the majority, next time you're out, take a closer look. You might spot a bin that closes with a satisfying *shhh* instead of a bang. It's a small but thoughtful design choice for a more peaceful city soundscape.