The world’s fastest highway network has a fatality rate lower than the U.S. Interstate System.

According to research by Germany’s Federal Highway Research Institute, there were 1.98 deaths per billion kilometers traveled on German speedways in 2010 while American motorists traveling the same distance suffered a 3.62 fatality rate.

Although over 70 percent of the Autobahn has unrestricted speed limits, numerous factors could contribute to Germany’s safer road conditions. Higher investment in infrastructure maintenance, a longer, more difficult training process for driver’s license applicants, and stiffer penalties for traffic violations like distracted driving, tailgating, and driving in the passing lane could all play a part in reducing the death toll.