This Training school is part of the ERASMUS+ project “REthinking and FOstering Competence and skills for sUstainable transport, Shipping, and logistics - REFOCUS”, funded by the European Union. The European Commission's support for the production of this Training School does not constitute an endorsement of the contents, which reflect the views only of the authors, and the Commission cannot be held responsible for any use which may be made of the information contained therein.