Laboratory Emulator Using Connected Scaled Cars to Study Traffic Waves Traffic density has become one of the substantial problems in urban areas. Saturated roads increase the likelihood of vehicular collisions, mostly since the distance between the cars is decreased significantly. The emerging technology of communication between cars is suggested as an enabling technology to optimize traffic flow control. One solution to improve traffic flow on dense roads is to share kinematic properties among near cars. This could enable drivers or an automated system to get better decisions with respect to following the preceding cars. Control algorithms for cars driving in heavy traffic that considers the velocities, acceleration and spacing of the neighboring vehicles ahead, could eliminate traffic waves and reduce tail to head collisions. The purpose of this work is to design and construct a lab testbed based on scaled electric cars, which are remotely controlled by a PC, and to implement driving algorithms for these cars assuming the kinematic properties of the adjacent cars are known.

Intersection Crossing in Mixed Traffic Flow Environment leveraging V2X information The paper addresses the problem of safe crossing a nonsignalized intersection in a mixed traffic scenario composed of both connected humandriven and autonomous vehicles. To solve this problem, we propose a control strategy that leverages information shared via V2X for extending the lineofsight of the onboard ranging sensors. The control protocol augments the classical IADAS approach based on local measurements with an additional networked action that has the aim of preventing oncoming colliding situations. The control strategy is purposely designed for counteracting the unavoidable presence of communication impairments that turns into multiple timevarying delays affecting the information sent via the cyberspace. The numerical analysis, carried out leveraging the MatlabSimulink platform, discloses the effectiveness of the approach for a challenging case where vehicles dynamic conditions are such that collisions would have occurred at the intersection if the vehicle would only be equipped with range sensors.