This catalog of results documents the output of the Exploratory Advanced Research (EAR), addressing the need for longer term, higher risk research with the potential for long-term improvements to transportation systems—improvements in planning, building, renewing, and operating safe, congestion-free, and environmentally sound transportation facilities. This is a critical link in the chain of research, development, and deployment of new technology and practices necessary for the United States to have the best transportation system in the world for decades to come.

The EAR Program focuses investments in areas where changes in science and engineering can dramatically lead towards making the highway system safer, more durable, and more efficient:

• Connected Highway and Vehicle System Concepts.
• Breakthrough Concepts in Materials Science.
• Human Behavior and Travel Choices.
• New Technology and Advanced Policies for Energy and Resource Conservation.
• Technology for Assessing Performance.