 Road infrastructure sustainability should prioritize equal treatment of all users and improve their quality of life through better mobility and traffic safety. To achieve this goal, designers must consider various factors such as traffic conditions, geometric features, and traffic volumes when evaluating alternative design criteria. In particular, the safety performance functions, SPF, tool can be used to estimate the expected crash frequency based on these variables. This study examined Medellin's crash records from 2012 to 2016 and found that certain types of intersections and traffic conditions were associated with higher rates of crashes resulting in property damage only, PDO, and fatalities slash injuries, FI. Additionally, T-junctions were found to be safer than four leg junctions, while right turns increased the likelihood of a collision resulting in FI. This article was authored by Victor Gabriel Valencia-Leix, Basilio Restrepo Betancourt, Christian Lizarazzo Jiménez, and others.