This study evaluates the effects of various market penetration rates of connected autonomous vehicles (CAV) on traffic operations at roundabouts. We have utilized a simulation-and an optimization-based approach for this purpose. The simulation-based approach included calibrated car following models with different driving behavior parameters for a mixed fleet of conventional vehicles and CAVs with various penetration rates ranging from 0% to 100%. We also used an optimization-based approach for the 100% CAV market penetration rate case to evaluate operations while trajectories of CAVs were optimized by a central controller. The simulation results showed that CAVs improved traffic operations in under-and semi-saturated flow conditions. Nevertheless, the optimization of CAV trajectories resulted in significant delay reductions and improvements in the roundabout performance. These results indicate that CAVs have great potentials for improving traffic operations once an effective control algorithm is available.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Effects of Automated Vehicles on Traffic Operations at Roundabouts


    Contributors:


    Publication date :

    2020-09-20


    Size :

    4683670 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English





    Controlling Automated Vehicles on Large Lane-Free Roundabouts

    Naderi, Mehdi / Papageorgiou, Markos / Troullinos, Dimitrios et al. | IEEE | 2024


    Roundabouts: Traffic Simulations of Connected and Automated Vehicles—A State of the Art

    Campi, Elena / Mastinu, Gianpiero / Previati, Giorgio et al. | IEEE | 2024

    Free access

    Traffic operation on roundabouts

    Schnabel, W. / Transportation Research Board; Committee on Highway Capacity and Quality of Service / Australian Road Research Board | British Library Conference Proceedings | 1994