A method comprises controlling the operation of an autonomous vehicle using navigation data from a first data source until the autonomous vehicle reaches a specific area for which a second data source has navigation data for the specific area, and using navigation data from the second data source to control operation of the autonomous vehicle while the autonomous vehicle is within the specific area. Non-limiting examples of a specific area include construction zones, private property, secure areas, and state parks. When the autonomous vehicle reaches these specific areas, navigation data specific to this area may be downloaded from a second data source.