Highlights The environmental effects of the traffic signal countdown timer were investigated. Drivers are more willing to control vehicle idling from 100 m away from the stop line and from 60 s of red time. Controlling vehicle idling can reduce 10.9% of the GHG emissions of stationary vehicles. Controlling vehicle idling can reduce 56.8% of the GHG emissions of idling vehicles at signalized intersections.

    Abstract The traffic demands in major cities are increasing, causing significant congestion and greenhouse gas (GHG) emissions around signalized intersections. Many researchers have attempted to mitigate these effects by optimizing traffic signal systems, but this study introduces a red time traffic signal countdown timer (TSCT) to help drivers decide to control vehicle idling and investigates its environmental benefits. The research framework consists of three modules: the development of a drivers’ behavior model; implementation of vehicle idling control; and the estimation of GHG emissions. This framework has been materialized in Haeundae-gu in Busan, Korea as a case study. The results revealed reductions of GHG emissions by 10.9% and 56.8% of the stationary and idling vehicles, respectively, proving the environmental benefit of the red time TSCT with the drivers’ voluntary involvement. This study presents a logical basis for the assertive deployment of the red time TSCT in major cities suffering from GHG emissions.


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    Titel :

    Investigation of environmental benefits of traffic signal countdown timers


    Beteiligte:
    Kim, Minjeong (Autor:in) / Kim, Hoe Kyoung (Autor:in)


    Erscheinungsdatum :

    2020-01-01




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




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