Road designs that prioritize vehicular flow over vulnerable users are common in Latin America. The present investigation evaluates the impact of the inclusion of a pedestrian bridge, in an urban intersection, on pedestrian mobility. Based on the field inspection and video camera recordings, the recurring behavior of pedestrians at crosswalks and desire lines was identified, lines that are often illegal crossings. In addition, the flow and pedestrian density on the observed routes were determined. It was observed that the pedestrian bridge is used by 24% of pedestrian users at the intersection, the rest of pedestrians use the two informal routes and the two formal ones, which indicates a poor urban infrastructure design. Therefore, a safe alternative design of the intersection was made based on the pedestrian desire lines. A proposal of crossing paths and two pedestrian traffic lights was...