Professor Dr. Christoph Walther, Head of Global Research at PTV Group, was appointed by the World Road Association (WRA) to a 4-year term on the Road Transport System Economics and Social Development Committee upon recommendation of the German Ministry of Transport and Digital infrastructure (BMVI). Together with experts from around the world, he will deal with issues concerning transport reliability and ex-post evaluation of transport infrastructure projects. The general objective of the World Road Association is to promote international cooperation in the field of roads and road transport. Expert teams draw up recommendations on different road-transport related issues during their 4-year term as WRA committee members. In the field of transport reliability, experts will establish common principles to define reliability in different climatic, economic and cultural environments. Their research activities will be based on case studies provided by the member countries. www.ptvgroup.com.