Since 1998, Prognos AG, Basel, and the Centre for European Economic Research (ZEW), Mannheim, have conducted a quarterly survey of 300 experts in the field of transport about the development of transport markets. The resulting ZEW/ProgTrans Transport Market Barometer is widely respected in economic publications and among experts in the field, and can be downloaded at http://www.zew.de/transportmarktbarometer. This year has seen the publication of the 50th edition of the ZEW/ProgTrans Transport Market Barometer. Each quarterly survey consists of a brief questionnaire for the participating experts to fill out. As compensation for their efforts, the survey participants get to be the first to see the complete analysis and discussion of the results. Interested experts in the transport and shipping sectors can ask to join the panel of surveyed experts.