According to the Hellenic Statistical Authority ELSTAT data, among the 793 persons killed in Greece in 2015: 405 were outside built-up areas and 388 were inside built-up areas. 57% of road fatalities outside built-up area occurred on national roads. More than 80% of road accidents and half of fatalities occurred inside built-up areas. However, accident severity is almost 5 times higher outside built-up areas in total.