The 1920's served as the beginning of Eno as an organization. Following the publication of his "Rules of the Road," William Phelps Eno saw his traffic ideas come to life—from New York City to Paris to London—and officially established The Eno Foundation for Highway Traffic Regulation to provide an organizational arrangement capable of attracting the participation and thinking of others and to disseminate his ideas. With the creation of the Ford Mobile T and the passing of the 1921 Federal Highway Act, the 1920's saw the rapid rise of the automobile in America.
In the 1930’s, William Phelps Eno’s vision of traffic was furthered by the organization’s growth and influence. This decade saw the invention of the Enoscope (a traffic speed measurement tool), the association of Eno with Yale University, and the creation of a new headquarters for the organization. The 1930's also saw the creation of a federal gas tax and more widespread use of automobiles.
In the 1940's, the Eno Foundation underwent a period of change. Following a highway traffic conference and the passing of Mr. Eno, the Eno Foundation began the publication of a quarterly academic journal called Traffic Quarterly. The publication continued until 1981 and while it was originally envisioned as being “devoted exclusively to the improvement of highway traffic,” the scope of the publication was later expanded to improve transportation in all its aspects.
In the 1950's, Eno continued to publish Traffic Quarterly and saw the readership expand across the globe. Under President Eisenhower, the Federal Highway Act of 1956 saw the creation of the Interstate System and the first bailout of the Highway Trust Fund—a $359 million “repayable advance” appropriation from the general fund of the Treasury.
In 1968, the bylaws were amended to change the name from Eno Foundation for Highway Traffic Control to Eno Foundation for Transportation, thereby identifying the Foundation's expanded scope of interest in transportation. Under the chairmanship of Wilbur Smith, beginning in 1965, Eno Foundation publications emphasized such subjects as the national problem of traffic safety, roadside hazards, speed enforcement policies and practices, zoning, and traffic-reexamining problems that were covered in earlier years. Some key moments for the industry included the creation of the U.S. Department of Transportation (USDOT), the appointment of Alan Boyd as the first Secretary of Transportation, and the passage of the Urban Mass Transportation Act into law on July 9, 1964.
The Eno Foundation for Transportation celebrated a half century of service October 19, 1971, with a black tie dinner at Hotel Pierre in New York. The principal speaker was the famous German rocket engineer, Dr. Werner von Braun of the National Aeronautical and Space Administration. The Board of Directors, the Board of Consultants and 120 guests were present. Throughout the 1970's, the Eno Foundation supported the enhancement of transportation knowledge through fellowships and support of programs for the Bureau of Highway Traffic at Pennsylvania State University and Yale University, among others.
During the 1980's, Eno participated in the UMTA/FTA International Transit Studies Program, which brought approximately 300 senior professionals to international transit agencies to collect information, share knowledge, and expand international cooperation. Eno published parking textbooks, a biography of William Eno, and the Annual State of Logistics Report. In addition, Eno began the publication of Commuting in America. The 1980's saw the rise of deregulation initiatives in the federal government, passing laws to deregulate the railroads, ocean shipping, and trucking.
During the 1990’s, Eno had a particular focus on professional development and the transportation funding. In XYZ, Eno welcomed the first class of Future Leaders Development Conference (LDC) Fellows. On February 23, 1999, Eno held a policy forum in which 35 academic, government, and private-sector leaders met to discuss the importance of transportation investment for the future of the American economy. In addition, Transportation Weekly (later known as Eno Transportation Weekly), began in 1999. Some key moments for the transportation industry include the Intermodal Surface Transportation Efficiency Act of 1991 and the Urban Mass Transit Administration becoming the Federal Transit Administration within the USDOT.
The 2000's saw a rapid change in transportation technology, security, and funding. Following the 9/11 terror attacks, the TSA was established in 2001 and in 2003 the TSA became part of the newly created Department of Homeland Security, as well as the Coast Guard. TIGER Grants (now known as BUILD Grants) were created to incentivize greener development and reduce reliance on energy. Eno launched the Aviation Working Group in XYZ and initiatives on financing transportation and aviation certification.
The 2010's was a decade of increased research and collaboration for Eno and technological advancement in the industry. Jeff Davis, creator of Transportation Weekly, joined Eno and began the publication of Eno Transportation Weekly. Eno partnered with the Multi-Agency Exchange (MAX) program to facilitate the Eno/MAX program, which brings front-line managers to visit their counterparts in the other agencies for collaborative best-practice sharing practices. Some key industry moments in the 2010's included the invention of Transportation Network Companies (TNCs), the passage of the FAST Act, and the subsequent INFRA grants.