An NTUA Diploma Thesis titled “Critical factors of the influence of mobile phone use on driving behavior, based on smartphones’ data” was recently presented by Sofia Akritidou.  The aim of this Diploma Thesis is to examine and model the critical factors of mobile phone use on driver behavior through the exploitation of data from smartphone sensors. The results revealed that the parameters affecting the use of mobile phone while driving are four, the percentage of driving duration with speed above the speed limit, distance driving, average deceleration, and average speed. For the general, urban and rural models, the average deceleration had the most significant impact, whereas for the highway model, distance was the most significant parameter. pdf5 ppt5