The 6th International Symposium for Highway Geometric Design (ISHGD) took place with great success in Amsterdam on 29 June 2022.  The Symposium managed to encourage the continuous improvement of highway geometric design and focuses on the latest breakthrough practices relating to highway engineering in their different life phases, including daily operational effects and safe highway designs. Traditionally, the ISHGD Symposium consists of informative podium sessions on a range of geometric design issues from around the world, combined with country reports featuring recent local developments in road design, policy and practices, technical software demos, design and research products and technical tours of local highway design and construction practices.  NTUA actively contributed with the following presentations and papers :