The suspension bridge can handle large spans with minimal material consumption and is suitable for aesthetic design. The pavement structure is hung over hangers on the main supporting ropes, which is crucified between the pylons anchored at the ends of the bridge. It is stiffened with tension cables to reduce deformation and prevent vibration. At the same time a symbol of the city, the Pedestrian Bridge is very important for the inhabitants of the city and its surroundings, so a numerical model was made based on the available documentation for the purpose of assessing its behaviour. Dominant vibrations and periods were observed. Vibrations are important because users feel them most when using a bridge. If the vibrations create excessive discomfort and fear in the user, and this prevents them from crossing, the bridge does not fulfil its function and the GSU is exceeded. The frequency range around 2 Hz is the most inconvenient because the natural frequency of the bridge and pedestrians are located in that area. The problem is solved by additional stiffening of the bridge, increasing the damping of the bridge and installing vibration dampers. The numerical model was made in the SAP2000 software package. After the analysis, the results were compared with the results of the previous research from 2006 and 2019, and finally the cracks in the concrete were taken into account according to American and European standards. The construction is outside the dangerous frequency zone.