Adaptable navigation device

摘要

The described method and system provide for adaptable GPS navigation based on road and traffic conditions. A method includes: receiving input front a user designating a destination; determining a calculated route from a starting point to the destination; and presenting turn-by-turn (TBT) directions based on the route, wherein the presenting of the TBT directions includes presenting conditions information received from an external source. The conditions information can be used during route calculation and can be updated while the user is traveling on the calculated route.

主权项

1. A method for providing navigation guidance warnings in a vehicle having a computerized system including a satellite-based navigation aid device, the method comprising:
receiving input designating a destination for the vehicle; determining a route comprising a plurality of segments between a starting point to the destination; receiving, from an external source, current conditions information relating to a current segment of the plurality of segments; receiving, from either the external source or a further external source, additional information relating to a known hazard located on a segment of the plurality of segments, wherein the known hazard corresponds to a roadway feature associated with a vehicle accident risk; determining a guidance alert to be provided to the user relating to the current segment; determining, based on the current conditions information and the additional information, an adjustment parameter representing modifying a magnitude for advanced notification of a driver action on the current segment; recalculating a point on the current segment at which the guidance alert issues based upon a default value and the adjustment parameter; and presenting turn-by-turn (TBT) directions to a user based on the determined route; wherein the method further comprises, during the presenting the TBT directions, presenting the guidance alert at the point on the current segment and presenting a hazard alert notifying the user of the known hazard.