Research and innovation (R&I) have a significant role in the development of transport systems. This report provides a comprehensive assessment of 20 technologies from European R&I projects, researched at a low development phase, that have received high levels of funding and for which the number of organisations involved (and projects) indicate a high level of interest and capability in developing the technologies further. The assessment follows the methodology developed by the European Commission’s Transport Research and Innovation Monitoring and Information System (TRIMIS). The report critically assesses the development of the technologies to date, their potential applications and impact, as well as their alignment with European policies. It also provides an outlook of technologies researched at higher development phases, and indications on current global research trends and intellectual property activity.