A traffic light controller (20, Figure 1) for controlling multiple traffic light units has multiple operating modes, each corresponding to a particular sequencing or timing arrangement (e.g. a fixed timing sequence mode, a manual mode and a vehicle-activated mode). The controller can accept demands (i.e. requests for a traffic light to adopt a particular state) and service them according to the operating mode. It can save in memory any un-serviced demands preceding a mode change and prioritise them following the mode change. This can reduce the waiting time for a vehicle following the mode change. The demands may be manual (i.e. from the controller), natural (i.e. from a vehicle sensor) or forced or nudge demands from an internal timer. The controller may receive a demand, add it to a demand queue in a priority-based position, service the demands according to their priorities, remove serviced demands from the queue and maintain the demand queue across mode switches.


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    Titel :

    Traffic Signal Controller System


    Beteiligte:

    Erscheinungsdatum :

    29.05.2024


    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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