A method for operating a navigation system computes a pedestrian route for travel by a pedestrian. A request to calculate the pedestrian route from an origin to a destination and a walking preference for the pedestrian route identifying a feature of the pedestrian route are obtained. A geographic database...http://www.google.de/patents/US8019537?utm_source=gb-gplus-sharePatent US8019537 - Method of collecting information for a geographic database for use with a navigation system
