Navigation and Itinerary Management System

摘要: A navigation device comprises an itinerary preparation and management system. The includes a memory for storing data including representative of destination time constraint, such as deadline, earliest time, or range times during which the user wants to arrive at destination. also display displaying itinerary, position detection system detecting positional information associated with device, processor programmable correlate detect inability satisfy constraint. has access alternative destinations is able determine whether one will If so, provides opportunity replace