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Automatische Übersetzung:
TALKING TRAFFIC LIGHTS TELL YOU WHEN TO CROSS. An experimental set of talking Traffic Lights was demonstrated at Hayes , Middlesex , to Police officers , Minstry of Transport officials and Traffic experts . Instructions to pedestrians are recorded on magnatised plastic strips and stored in a little box attached to the traffic lights post , as the lights change the appropriate part of the strip is automatically Switched on . PICTURE SHOWS :- Mr . A. TRAYNER , Who adapted the sound system to traffic lights , inserting the sound device in the form of magnetised plastic strips prior to this demonstration . 11 January 1949