At the World Road Congress held in Abu Dhabi from 6 to 10 October 2019, PIARC awarded a prize for the most outstanding papers in eight different categories. The PIARC Prizes are intended to encourage innovation, recognize professional competence, highlight topics of particular interest, promote the interests of developing countries and stimulate long-term reflection on the future of transport systems.As part of the XXVIth World Road Congress, an important call for papers on 41 themes complementary to the Technical Committees' themes was launched. More than 600 authors responded to this call and presented their work during the Congress. Eight papers received a PIARC prize, recognizing the most outstanding papers in each of the categories presented later on.