The Impact of Automated Vehicles on Traffic Flow and Road Capacity on Urban Road Networks

Automated vehicles (AVs) are believed to have great potential improve the traffic capacity and efficiency of current transport systems. Despite positive findings impact AVs on flow road increase for highways, few studies been performed regarding urban roads. Moreover, considering volume with a mixture human-driven (HDVs) rarely conducted. Therefore, this study investigated gradual increments AV penetration The adopted microsimulation approach using VISSIM Wiedmann 74 model car-following behavior. Parameters were set at SAE level 4 automation. A real network was chosen simulation having 13 intersections in total distance 4.5 km. had various numbers lanes from single lane five one direction. consists main arterial parallel serving nearby commercial residential blocks. In total, 36 scenarios by combination penetrations an volumes. found that, as increased, also improved, reduction average delay time up 31%. Also, expected, links three or four more significant delay. terms increase, when saturated 100%, could accommodate 40% traffic.