Using a simulator to test reactions of drivers, students in the Fulton Schools human systems engineering program are exploring ways to prevent people from ignoring the “wrong way” signs and driving their vehicles down ramps and onto freeways — and heading into oncoming traffic. Officials in Arizona have reported almost 3,500 instances of such wrong-way driving in the state during a recent two-and-half-year period. Fulton Schools graduate students Mathew Dusharm and John Falluca hope to provide answers for why there is so much wrong-way driving and how to stop motorists from making those errors.