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,
London Bridge station This was following by a full electric service to Brighton and West Worthing on 1 January 1933, followed by services to Seaford, and on 7 July 1935 and to and on 3 July 1938. By the 1930s, a regular feature of London Bridge traffic was a glut of commuter services all departing at or shortly after 5:00 pm. A typical timetable included 12-car services to Brighton, Eastbourne and Littlehampton, all between 5:00 and 5:05. "The fives" continued to run until the mid-1970s. Both the London Bridge stations were badly damaged by bombing in the London Blitz in December 1940 and