A wireless portable traffic signal unit 100 (e.g. for use in a temporary traffic light system comprising other such units), comprises a system controller 124 with multiple modes of operation. In a first mode, it generates control signals for causing the traffic signal units to present signals in a phase-based sequence defined by preconfigured timing logic. In a second mode, it instead receives control signals from a separate control unit (140,Fig.3) for causing the traffic signal units to present signals in a stage-based sequence defined by a preconfigured control scheme. The mode may be indicated on a display (120,Fig.3). Also disclosed is a portable control unit (140, Fig.3) comprising an input for receiving a preconfigured control scheme (e.g. implementing an intergreen matrix) and a transmitter for transmitting control signals to cause portable traffic signal units to present signals in a stage-based sequence. The portable control unit may store multiple such preconfigured control schemes, selectable by a user, which cannot be manually altered.


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    Titel :

    Temporary traffic control system


    Erscheinungsdatum :

    29.06.2022


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



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