A method of obtaining data for a geographic database for use with a navigation system includes collecting data indicating parking availability at a parking facility at a plurality of times and analyzing the data indicating parking availability. Based on the analyzing, the method derives historic parking data for the parking facility. The historic parking data indicates past parking availability at the parking facility at predetermined times. The historic parking data is stored in the geographic database. The historic parking data may indicate past parking availability for predetermined time intervals, days of the week, weather conditions and events.