Optimal traffic control via time-gap regulation

Abstract

We consider the problem of integrated traffic control in the presence of connected and automated vehicles, in particular by investigating the potential of time-gap regulation. Based on car-following models for semi-automated vehicles, we derive a macroscopic first-order traffic flow model that is employed to formulate a linearly constrained optimal control problem. Simulation results demonstrate improvements in term of traffic efficiency that may be achieved implementing the proposed strategy, also in comparison with conventional traffic control strategies.