There is no need for 4 trash bins placed side by side at each floor – there is over capacity of trash bins.

Convert 3 of the trash bins into recycling bins for paper, plastic and cans respectively.

The residents are not recycling as much as they possibly can because of the inconvenience of having to bring the recyclables down to the first level.

By having the recycling bins on every single floor will bring convenience to the residents and encourage them to recycle.