A Diploma Thesis titled ‘The combined effect of economic crisis, traffic and weather conditions on road safety in Athens‘ was presented by Eleni Ziaka in July 2014. Data was collected on a monthly basis for the period 2006-2011 in Attica for victims in road accidents (motorcyclists & pedestrians) including rainfall and temperature, traffic volume and speed in selected arterials and police reports (use of seatbelt and helmet, driving under the influence of alcohol and speed limit violations) and six lognormal regression models were developed. Results show that congestion is statistically significant in every model and speed is statistically significant only in models with seriously injured and killed people. Also, it was found that an increase in temperature and decrease in rainfall increases the number of casualties and especially the seriously injured and killed people. Moreover, influence of speed limit violations and driving under the influence of alcohol is statistically significant. Finally, it is seen that there is a decrease trend in the number of casualties during the economic crisis.