Frauscher was approached by a US Class 1 railroad regarding a grade crossing owned and operated by them, on a track crossing a public road. The location is highly susceptible to flooding at the approaches, causing the existing signaling system to shunt. This results in a false activation of the crossing gates and lights. Additional shunting issues that affect this crossing are related to poor ballast and track conditions. The operator’s main goal was to find a signaling solution that would keep the crossing operational under any of these conditions. In addition, a design goal for the new system was that it would seamlessly integrate with the current crossing controller.