When travellers plan their journey, they often have a particular route or direction in mind that they wish to follow. There are a variety of synonyms that can be used to describe this desired travel direction, such as itinerary, course, path, route, heading, bearing, trajectory, track, and route map. Additionally, travellers may use specific location names to indicate their desired travel direction, such as north, south, east, or west, or may use more general descriptors such as clockwise, counterclockwise, up, down, or diagonally. Whatever terms are used, outlining a desired travel direction is an important part of planning a successful journey, whether it be for business or pleasure.