Navigation method, system or service and computer program product

摘要

A navigation method, system, service and computer program product may include providing enhanced travel instructions in response to receiving a destination and detailed travel directions from at least one waypoint to the destination being available.

主权项

1. A navigation method, comprising:
receiving a destination by a navigation device; calculating a route from a first location to a waypoint by the navigation device, the waypoint being a location proximate to the destination; and providing detailed travel directions via a non-GPS network from the waypoint to the destination by the navigation device so that the navigation device provides complete directions from the first location to the destination in response to the detailed travel directions from the waypoint to the destination being available, wherein the detailed travel directions comprise landmarks or visual cues to define a path for guidance from the waypoint to the destination, the detailed travel directions being provided and customized by an entity affiliated with the destination; and determining a distance of the path from the waypoint to the destination; and one of: rejecting the detailed travel directions in response to the distance of the path exceeding a predetermined threshold; and ranking the detailed travel directions as unfavorable in response to the distance of the path exceeding the predetermined threshold; wherein the method further comprises: determining the distance of the path defined by the detailed travel directions by the navigation device; and providing a safeguard that the detailed travel directions are bogus in response to the distance from the waypoint to the destination exceeding the predetermined threshold.