GTT

Emergency Vehicle Preemption and Transit Signal Priority systems comprised of detectors, phase selectors/discriminators, emitters, radio GPS units, radio GPS antennas, phase selectors, vehicle control units and software used to assist emergency vehicles and transit operations to receive a green light advantage in responding to emergencies or maintaining schedule adherence; Traffic Sensing Systems comprised of detectors, traffic monitoring cards, microloop sensors, and non-invasive microloop sensors used to precisely monitor vehicle movement and presence data so engineers can maximize traffic efficiency