Road accidents are one of the factors that most adversely affect today's society, both due to the high number of victims it involves and the material losses it generates, year after year.In the case of Colombia, there is a high risk for the occurrence of traffic accidents on highways, because a large part of the road sectors that make up the country's road network are developed in mountainous topography, where due to the low budgets invested in road solutions by the authorities in charge, there are deficient geometric layouts, which generate a poor level of consistency.In this manuscript, the inventory of accidents that occurred during the period 2009 to 2014 is presented, along the Pasto -Chachagui road sector, located in the south of the country.By contrasting the location of the reported accidents, with the geometric characteristics of the route, it was possible to show that there is a close relationship between the inconsistency of the geometric route and the occurrence of traffic accidents, and it can be noted that most of the accidents occurred in those sections in which there is a poor geometric layout.