TRA (Transport Research Arena) is the major conference on transport in Europe, supported by the European Commission, the Conference of European Road Directors, and the three European Technology Platforms: the European Road Transport Research Advisory Council (ERTRAC), the European Rail Research Advisory Council (ERRAC), and the WATERBORNE TP.

TRA 2014 will be organised in Paris, France, hosted by the French Ministry of Ecology, Sustainable Development and Energy and IFSTTAR.