Eurocities organized with great success the Impacts and Evidence Webinar “How to move from regulation to effectiveness of speed reduction strategies a task force on 30 km/h and speed reduction in cities”, which was held online, on 14 March 2025. As part of the activities of the Eurocities Task Force, 20 cities actively involved to organize this Webinar on impacts of 30 km/h in which 200+ cities participated. NTUA actively contributed with the following presentation: