A head-mounted information system is provided, the head-mounted information system comprising a frame configured to be mounted on a head of a user, a display unit coupled to the frame, a sensor unit coupled to the frame comprising one or more motion sensors, and, a processor unit coupled to the frame and connected to receive signals from the motion sensors. The rumble strip sensing device is configured to detect an input from a rumble strip to a vehicle wheel that is indicative of a rumble strip engagement amount. The signature is used by a dictionary to generate likely possibilities for the word.