A paper titled ‘Overview of critical risk factors in Power-Two-Wheeler safety’ co-authored by E.Vlahogianni, G.Yannis and J.Golias is just published in the Accident Analysis and Prevention scientific journal. The paper focuses on the PTW accident risk factors and reviews existing literature with regard to the PTW drivers’ interactions with the automobile drivers, as well as interactions with infrastructure elements and weather conditions. Several critical risk factors are revealed with different levels of influence to PTW accident likelihood and severity. A broad classification based on the magnitude and the need for further research for each risk factor is proposed. The paper concludes by discussing the importance of dealing with accident configurations, the data quality and availability, methods implemented to model risk and exposure and risk identification which are critical for a thorough understanding of the determinants of PTW safety.