The next Transport Research Arena (TRA) conference is being organised for April 14th-17th 2014 and will be held at La Défense in French capital, Paris. This event is crucial for the transport sector in Europe and is supported by the European Commission, the Conference of European Road Directors and the three European Technology Platforms. The conference focuses on the main challenges in transport and mobility for people and goods, with respect to energy, environment, safety, security and economic factors. T