1. A method of providing traffic sign warnings to a driver of a moving vehicle, the method comprising: optically scanning an area in front of the moving vehicle to obtain an image of said area in front of the moving vehicle; detecting and recognizing a road sign in said image; determining a location of the recognized road sign relative to the moving vehicle by localizing the recognized road sign in three-dimensions using geographic coordinates associated with the moving vehicle and a distance between the moving vehicle and the recognized road sign obtained from the image; determining a first vehicle operation parameter that should be changed responsive to the recognized road sign; optically scanning the driver's head and eyes; calculating at least one focal point of the driver's eyes from said optically scanning the driver's head and eyes; determining whether the driver has seen the recognized road sign from the calculated at least one focal point of the driver's eyes and the determined location of the recognized road sign relative to the moving vehicle; determining whether the driver has changed a vehicle operation parameter; if the driver has not changed the vehicle operation parameter, providing a first warning to the driver responsive to the recognized road sign; and updating a database of road sign locations with the determined location of the recognized road sign.