A road sign 10 for displaying variable quantities of information comprising; a speed detector 11 for detecting the speed of one or more vehicles 13 approaching the road sign 10 and a display 12 for displaying information to the or each vehicle 13 approaching the road sign 10. A processor is operable to determine, depending on the detected speed of the or each vehicle 13, the quantity of information to be displayed to the or each vehicle by the display 12. The amount of information displayed is increased incrementally as the speed of the or each vehicle 13 decreases, and vice versa. The detector 11 may optionally be configured to detect the speed of numerous vehicles 13 within a predetermined time frame and trigger, via the processor, display variations in response to a percentage of vehicles 13 travelling above or below a threshold.


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    Titel :

    Variable display road signs


    Beteiligte:

    Erscheinungsdatum :

    24.04.2019


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

    IPC:    G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS



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