PC.53 iDetail ran a booming IBC business during the winter semester. They would detail automobiles while customers waited. With their initial way of cleaning vehicles--sequentially, like an assembly line--they were able to detail 3 vehicles per hour utilizing 9 workers. After some thought and experimentation, they changed the layout by placing multiple vehicles in adjacent stalls and working on them somewhat simultaneously. After these changes they were able to service 4 vehicles per hour with 9 workers