The objective of this research is to optimize the management of accident-causing data by taking into account the geographical coordinates of accident sites. To do this, Google Maps, Google Earth and satellite positioning system receivers were used. These geospatial tools made it possible to attribute post-disasters, geographical coordinates to road traffic accidents in the municipality of Yopougon recorded by the road safety office in a context of lack of formal street addressing between the years 2016 and 2018. Then, by concatenating the geographical coordinates, in particular the latitude and longitude, the accident sites with identical coordinates were grouped together. A total of 3165 accidents with 2707 nominal addresses were geocoded, including 1694 serious accidents with 1138 nominal addresses. Serious accidents are accidents with at least one serious injury or death. The concatenation of the coordinates made it possible to group the 2707 nominal addresses into 280 places and particularly the 1138 into 251. That is 90% and 80% respectively gains for better analyses later. It has also reorganised the classification of accident-prone places. In conclusion, the geocoding of accidents and the concatenation of geographical coordinates that it allows improves the quality of basic statistical data for classical and spatial downstream analyses.