Inland waterway transportation has played a limited role in Europe so far, with a share of around six percent. Together with 15 partners, Fraunhofer researchers are seeking to change this with the EU project CRISTAL. Björn Krämer and Tammo Märtens, both research scientists at the Fraunhofer Institute for Material Flow and Logistics IML, explain in the interview how digital twins and smart sensor technologies can help increase transportation capacities and make logistics processes more reliable.