Shipping barrels have come a long way. They started as basic storage containers. Now, they are smart devices with advanced technology. This report builds on what we know about traditional shipping drums. It explores new ideas, green practices, and creative uses changing the industry.

This well-known principle in logistics shows when performance starts to drop sharply. This happens even if space use only goes up a little. This report looks at why this happens. It explores the math behind queueing theory. It also points out the challenges that come up when warehouses hit this key stage.