Abstract: An approach is provided to selectively incorporate traveler feedback into a trip planning database. In the approach, a planned trip segment is retrieved with the planned trip segment including a planned start time, a planned start location, a planned mode of transportation, a planned destination location, and a predicted end time. Subsequently, actual trip segment data items are received. A validation routine checks whether the planned trip segment was actually traveled by comparing the retrieved planning trip segment with the actual trip segment data items. If the trip is successfully validated, then the trip planning database is updated using feedback received from the user. However, if validation was unsuccessful, then the trip planning database not updated with the user's travel feedback.