Among the most important aspects to monitor in traffic engineering, is the accident rate, which claims a high number of lives each year, leaves thousands of injured and causes considerable material damage.Hence, having reliable and upto-date information about traffic accidents occurring within a certain territory is essential for making decisions leading to the improvement of the road system.This document presents relevant information related to accidents that occurred in the city of San Juan de Pasto, department of Nariño, southwestern Colombia, during a period of 30 consecutive months between the years 2017 and 2019.For the organization of The accident rate data were considered the most important variables, among which we have: the date of occurrence of the accidents (month and year), the number of injured and deaths in accidents, the number and type of accidents, the classification of the victim involved in the accidents, the type of vehicle and the time intervals where the accidents occurred.Additionally, the calculation of morbidity, mortality and fatality rates, determined from part of the information collected, is presented.According to the results obtained, it could be established that the accident rates considered in the analysis presented the highest values during the noon and afternoon peak hours