1. A method of traffic sign recognition in a driver assistance system of a motor vehicle, said method comprising the step: a) using a camera, recording image data of at least one image of a vehicle environment outside of the motor vehicle driving along a road; and further comprising the following steps in an automatic machine interpretation process performed by said driver assistance system: b) from the image data, recognizing the presence and class of at least one main sign present in the vehicle environment; c) from the image data, recognizing the presence of at least one additional sign assigned to the main sign; d) classifying the additional sign using a pattern recognition method to an extent possible; e) reading and interpreting and thereby recognizing text of the additional sign using a text recognition method; and f) in a relevance assessment unit of the driver assistance system, automatically assessing a relevance of the main sign in an automatic machine-based relevance assessment, in which the recognized text of the additional sign is compared to situational information regarding the motor vehicle, a current operation of the motor vehicle, or a condition of the vehicle environment.