1) Sim Bowen, Farrell Nah, Sherwin Seah
2)Cleaning trolley in hawker centers take up too much space and are very dirty. This is a safety and health hazard.
3) Trolleys are too big and poorly designed. A bigger trolley is harder to clean and maintain, causing it to become very dirty and unhygienic. A big trolley will also require more space to store and is harder to use. It will also block passageways. A smaller and more compact trolley can be designed to solve all the above problems