Millennium Bridge, London people walking caused small sideways oscillations in the bridge, which in turn caused people on the bridge to sway in step, increasing the amplitude of the bridge oscillations and continually reinforcing the effect. On the day of opening, the bridge was crossed by 90,000 people, with up to 2,000 on the bridge at any one time. Resonant vibrational modes due to vertical loads (such as trains, traffic, pedestrians) and wind loads are well understood in bridge design. In the case of the Millennium Bridge, because the lateral motion caused the pedestrians loading the bridge to directly participate with the bridge,
Albert Bridge, London the bridge; Although the barracks closed in 2008, the warning signs are still in place. Albert Bridge was catastrophically unsuccessful financially. By the time the new bridge opened, the Albert Bridge Company had been paying compensation to the Battersea Bridge Company for nine years, and on completion of the new bridge became liable for the costs of repairing the by then dilapidated and dangerous structure. The cost of subsidising Battersea Bridge drained funds intended for the building of wide approach roads, making the bridge difficult to reach. It was located slightly further from central London than neighbouring Victoria (Chelsea) Bridge,