Southwest Airlines Touts Potential Fuel Cost Savings with Use of Firmer Pavements

Using firmer pavements can save billions in fuel costs each year, as noted in the January 2013 edition of Spirit magazine, the magazine of Southwest Airlines. The item notes the work taking place by researchers at the Massachusetts Institute of Technology (MIT). Lead researcher Franz-Josef Ulm explains why this is so using an analogy of cars continually driving out of dips they create similar to feet walking on sand.