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,
Kingston Bridge, London Kingston Bridge, London Kingston Bridge is a road bridge at Kingston upon Thames in south west London, England, carrying the A308 across the River Thames. It joins the town centre of Kingston in the Royal Borough of Kingston upon Thames, to Hampton Court Park, Bushy Park, and the village of Hampton Wick in the London Borough of Richmond upon Thames. In 2005 it was carrying approximately 50,000 vehicles per day with up to 2,000 vehicles per hour in each direction during peak times. Kingston Bridge is on the reach above Teddington Lock and close to and downstream of the mouth