In short: yes, but not automatically, and usually not by a huge margin. Liners can make urban trash collection faster because they turn loose waste into one quick bag to lift. Workers don’t have to scrape out sticky bins, chase blowing litter, or spend as much time cleaning up spills. On dense city routes, where every minute per stop adds up, that can save a little time and reduce frustration. A well-fitted liner also keeps bins cleaner, which can mean fewer complaints and less washing between collections.
But I wouldn’t promise a big speed boost just because every bin has a liner. Collection speed depends on the whole system: bin design, liner strength, bag weight, truck layout, route density, and whether workers can grab and swing the bag safely without double-handling. Thin liners tear; oversized liners get caught; knots can slow the lift; heavy bags can be awkward. If crews still have to open lids, sort contamination, or deal with liners left on the ground, the time savings disappear.
So for sanitation workers, liners are best seen as a small efficiency tool, not a magic fix. They can speed up collection when they fit properly, are supplied consistently, and match the bin-lifting routine. They also improve hygiene and reduce spill cleanup. But route planning, training, and reliable equipment probably matter more. Used well, urban trash bins with liners can shave time and make the job cleaner. Used poorly, they just add another step.