Eno’s “Rules of the Road” were adopted by New York City and then by Parisians who referred to them as “Le Systeme Eno.” It was by using Le Systeme Eno that France’s taxicab army rushed to Verdun in World War I and halted the German blitzkrieg, stemming the drive toward Paris. Between world wars, Eno “Rules of the Road” were adopted by most capitals around the world. Italy’s Benito Mussolini used the pro­cedures to silence the nerve-shattering horn-blowing in Rome. Hitler’s Germany, employing its domestic police forces as the frame­work for forbidden military training, treated Mr. Eno like royalty on his Berlin visits, and borrowed his ideas to build a military highway network, the autobahn, which served as a pattern for the U.S. Inter­state highway system advocated by Mr. Eno during the Franklin D. Roosevelt administration. Le Systeme Eno was used officially by the Allies in World War II and also governed traffic of Germany, Italy and Japan. It was adopted universally wherever there was regulated motor travel.