There are different factors that affect driver’s behaviour at an urban signalized intersection. Complementary countdown signal heads can be used to inform the driver about the traffic light phase status. In the research presented in this paper, we explored how a countdown signal affects the driver’s reaction. We focused on the analysis of red/amber, red and amber running violations. We also observed and measured traffic flow start-up lost time and headway per cycle. Measurements took place in Ljubljana at a four-way intersection where two countdown signal heads are installed that face different directions. We used the “on-off-on” approach, using video surveillance and detection technology. According to the results of the investigative questionnaire, more than 84% of the surveyed drivers expressed positive opinion about the device. Analyses of field-test results have shown that the red and/or amber running violation rate is higher when the device is turned off. The results of the paper suggest that the countdown device had very little effect on the capacity of an urban signalized intersection.


    Access

    Download


    Export, share and cite



    Title :

    Acceptability of Countdown Signals at an Urban Signalized Intersection and their Influence on Drivers Behaviour


    Contributors:


    Publication date :

    2013




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    Unknown




    Drivers' Responses to Countdown Timer at Signalized Intersection

    Supiyono / Ludfi Djakfar / Achmad Wicaksono | DOAJ | 2025

    Free access

    Research on Drivers’ Response to Red Light at Countdown-Signalized Intersection

    Huang, Mingxia / Zhang, Haiqiang / Xu, Ze’en | ASCE | 2019


    Evaluating the Performance of Signalized Intersection with Signal Countdown Timer

    Jatoth, Jithender / Singh, Nawal Kishor / Mehar, Arpan | Springer Verlag | 2021


    Effect of Traffic Signal Countdown Timers on Pedestrian Crossings at Signalized Intersection

    Biswas, Sabyasachi / Ghosh, Indrajit / Chandra, Satish | Springer Verlag | 2017


    Results of Research of the Traffic Safety at Signalized Intersection with Countdown Timers

    Sobota, Aleksander / Żochowska, Renata / Karoń, Grzegorz et al. | Springer Verlag | 2018