Walmart is able to move goods to and from distribution centers because we maintain a private fleet of trucks and a skilled staff of truck drivers. We think our team of drivers is the best in the world. They're part of one of the largest and safest fleets, and every year they drive 700 million miles to make millions of deliveries to our stores and clubs. Each driver averages around 100,000 miles annually-that's like driving around the world 4 times.
Together with our truck drivers, we're constantly working to ensure that we're moving merchandise in responsible, sustainable ways. Drivers follow the most efficient routes to their destinations and work to minimize the number of ''empty miles'' they drive. This way, we use less fuel, we drive fewer miles and we maximize the merchandise we deliver while minimizing our environmental impact.
By reducing the ''empty miles'' driven and other optimization techniques, Walmart logistics hauled over 161 million more cases while only increasing miles by 24 million, compared to last year. We improved the efficiency of our truck fleet by 87.4% in 2014 compared to 2005.