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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.

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.
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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
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Album / TopFoto
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Tamaño imagen:
6389 x 4854 px | 88.7 MB
Tamaño impresión:
54.1 x 41.1 cm | 21.3 x 16.2 in (300 dpi)
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