A dynamic fixation device is provided that allows the vertebrae to which it is attached to move in flexion within the normal physiological limits of motion, while also providing structural support that limits the amount of translation motion beyond normal physiological limits. If the corresponding road is found in the updated map database, the generated information of the new road such as the shape points information is deleted, thereby securely invalidating the generated information that became unnecessary due to the update of the map database. The at least two processing units are also connected via a switched network connection that provides at least one physical layer to transfer data. 2; main peaks are observed at 9.