The present invention relates to a system installed in a vehicle to: determine the location of the vehicle; identify each intersection as the vehicle approaches the intersection; determine the presence and type of traffic control device at that intersection; determine whether the traffic control device...http://www.google.es/patents/US6516273?utm_source=gb-gplus-sharePatente US6516273 - Method and apparatus for determination and warning of potential violation of intersection traffic control devices
Method and apparatus for determination and warning of potential violation of ...