A paper titled ‘Assessment of Driving Simulator Studies on Driver Distraction‘ co-authored by Panagiotis Papantoniou, Eleonora Papadimitriou and George Yannis is now published in Advances in Transportation Studies Journal. The objective of this research is the critical assessment of driving simulator studies on driver distraction. For this purpose 45 scientific papers have been examined with respect to the design of driving simulator experiments on the effects of various sources of driver distraction (in-vehicle or external). Through this analysis it appears that the most common distraction sources examined are visual distraction and cell phone use, while other sources of distraction have received notably less attention in existing studies. The simulated road environment of most experiments was rural, whereas far less is known on the effects of distraction in urban areas; furthermore, ambient traffic is not explicitly simulated and the effect of traffic flow on distracted driving may be a key question for further investigation. Finally, driver distraction is expressed by a number of measurements, in terms of its impact to driver attention (hands-off the wheel, eyes-off the road), driver behaviour (vehicle speed, headway, lateral position, driver reaction time) and driver accident risk. Although these different measurements describe different aspects of the distracted driving mechanism, it would be important to focus on the most sensitive ones, keeping in mind the entire chain of distracted driving causes and impacts, in order to significantly enhance the potential of exploitation of the results of existing studies.