One of the most important but often overlooked(忽视) advantages of one-piece flow is the way it naturally improves workplace safety. This is because there is no need to move large batches of material on the factory floor. The smaller batches mean that the factory can get rid of a major cause of factory accidents, forklift trucks(叉车). It also means that the containers(容器) of materials being moved around are fewer and smaller, reducing the number of lifting-related accidents. Focusing on flow almost always results in better workplace safety, even if it was not the primary(主要的) aim.