Abstract: Systems and methods for navigating a host vehicle are disclosed. In one implementation at least one processor is programmed to receive at least one image captured by a camera from an environment of the host vehicle; analyze the at least one image to identity a representation of a lane of travel of the host vehicle along a road segment and a representation of at least one additional lane of travel along the road segment; analyze the at least one image to identify an attribute associated with the at least one additional lane of travel; determine, based on the attribute, information indicative of a characterization of the at least one additional lane of travel; and send the information indicative of the characterization of the at least one additional lane of travel to a server for use in updating a road navigation model.