Camera attached to traffic lights to take photographs of motorists driving through red light.
Minister of Transport inaugurates first set of automated traffic lights at Piccadilly.
A new traffic signal enables pedestrians to cross in safety by flashing up the words 'Don't Cross' and 'Cross'. The Mayor of Westminster activates it and Hore Belisha is present.
Traffic lights changing - location of events unknown.
Traffic congestion in central London, Ernest Marples' speech + Xmas lights in Regents Street.
Children learn road safety in school playground on model road with working traffic lights.
First electric traffic lights installed at Piccadilly.
A new system of traffic lights is turned on it Trafalgar Square.
Speaking traffic signals demonstrated in Hayes, Middlesex.
First Pelican pedestrian crossing introduced in London.