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Publication - Professor Eddie Wilson

    Static Traffic Assignment on Ensembles of Synthetic Road Networks

    Citation

    De Villafranca, AEM, Connors, R & Wilson, E, 2018, ‘Static Traffic Assignment on Ensembles of Synthetic Road Networks’. in: Traffic and Granular Flow '17.

    Abstract

    We present a systematic approach for studying how performance of road networks is affected by changes in their geometry.
    We develop a new family of random planar graphs that models road networks and interpolates between a square grid and the β-skeleton of uniformly random points.
    The capacities of streets are set according to a rule that models a fixed provision of total resources.
    Ensembles of graphs are generated for different geometric parameter choices and the static traffic assignment problem is solved for a range of traffic demands. We find that variations in network efficiency, measured by the price of anarchy, are small both across demand values and geometric parameters.
    However, the best performing networks are those which preserve some grid structure. We find that the price of anarchy does not correlate well with standard network statistics.

    Full details in the University publications repository