Complex sentence: The stability of the pillars was reassured, all broken stone blocks were replaced, the asphalt top was removed and all traffic has been excluded from the Charles Bridge since then, making it accessible by pedestrians only.
Split into simpler sentences: The stability of the pillars was reassured, all broken stone blocks were replaced, and the asphalt top was removed. All vehicular traffic has been excluded from the Charles Bridge since then, making it accessible by pedestrians only.