Julia Buntaine Hoel, “Thoughts 23” (2016–2017), digital print on aluminum, 20 x 16 inches. Neuron data acquired from neuroimaging software developed by EyeWire.


The transportation sector is rapidly evolving. Safety, environmental, and efficiency concerns have spurred many innovations, including electric cars and trucks, more efficient airplanes, ridesharing technologies, and autonomous vehicles. These innovations have, in turn, produced new policy challenges. The articles in this section explore a changing transportation sector and how these changes affect other policy priorities, such as energy, homeland security, infrastructure, and the environment.