This paper describes improvement of the advanced demand signals II (ADS-II) scheme and performance comparisons between the conventional ADS-II scheme, the improved ADS-II scheme and a basic coordinated control scheme. Firstly priority of long idling users and the control both of the pedestrian red/green right-turn arrow indication and of the pedestrian red/vehicular green indication by using calculated demand values based on the idling times are introduced to the conventional ADS-II scheme. Secondly, the definition of the cooperation coefficient is modified. Finally, the performance of the improved ADS-II scheme is compared with that of the conventional ADS-II scheme and that of the coordinated control scheme, and the results show that the improved ADS-II scheme is superior. In particular, from the results of simulations under the condition that an average vehicular headway time of a main roadway per lane, that of the intersecting roadways per lane and an average pedestrian generation interval are 10s, 20s and 200s, respectively, in a street with 3 lanes, it is shown that the average idling time per person of the coordinated control scheme and that of the conventional ADS-II scheme approximately are reduced by 40% and by 30%, respectively.


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    Titel :

    Improvement of the advanced demand signals II scheme and its performance evaluation


    Beteiligte:


    Erscheinungsdatum :

    01.09.2008


    Format / Umfang :

    348595 byte




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



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