Abstract: A sensor system for detecting a vehicle on a driving surface includes a sealed casing, an integrated circuit vehicle detector, an integrated circuit transmitter and controller, and a battery. The sealed casing has a top surface and defines a cavity therein. The integrated circuit vehicle detector is disposed within the cavity and is configured to generate a vehicle present electrical signal when the vehicle is within a predetermined distance from the sensor system. The integrated circuit transmitter and controller is disposed within the cavity and is in communication with the integrated circuit vehicle detector. The integrated circuit transmitter and controller is configured to generate a vehicle present radio frequency signal in response to the vehicle present electrical signal. The battery is disposed within the cavity and is electrically coupled to the integrated circuit vehicle detector and the integrated circuit transmitter and controller.