The second edition of *The Handbook of Road Safety Measures*, published by Emerald Group Publishing Limited, provides a comprehensive overview of current knowledge on the effects of 128 road safety measures. Since its first edition in 2004, the book has been revised and expanded, with 65 chapters updated and 5 new chapters added. The book aims to serve as a reference for road safety professionals globally, addressing the increasing demand for accessible knowledge on preventing traffic injuries. It is based on the Norwegian edition, which first appeared in 1982 and has been continuously updated with funding from the Norwegian Ministry of Transport and Communications, the Norwegian Public Roads Administration, and the Swedish Road Administration. The current edition is the result of the collaborative efforts of researchers at the Institute of Transport Economics in Oslo, Norway.The second edition of *The Handbook of Road Safety Measures*, published by Emerald Group Publishing Limited, provides a comprehensive overview of current knowledge on the effects of 128 road safety measures. Since its first edition in 2004, the book has been revised and expanded, with 65 chapters updated and 5 new chapters added. The book aims to serve as a reference for road safety professionals globally, addressing the increasing demand for accessible knowledge on preventing traffic injuries. It is based on the Norwegian edition, which first appeared in 1982 and has been continuously updated with funding from the Norwegian Ministry of Transport and Communications, the Norwegian Public Roads Administration, and the Swedish Road Administration. The current edition is the result of the collaborative efforts of researchers at the Institute of Transport Economics in Oslo, Norway.