The 2024 infographic of NTUA Road Safety Observatory (www.nrso.ntua.gr) highlights one more very intensive and highly fruitful year. The nrso scientific team with high dedication, efficiency and expertise continues to grow and excel, being active in 31 innovative research projects, succeeded to publish 55 scientific papers (21 in peer reviewed journals), and travelled around the world in hundreds of meetings to develop and promote road safety science. The 30 Marathons campaign for promoting 30km/h city-wide speed limit was also successfully completed, contributing actively to the culture of calm and safe streets everywhere and for all.