An array of advisory notice strings for the route.
- iOS 7.0+
- macOS 10.9+
- tvOS 9.2+
This property contains an array of
NSString objects. Each string is localized according to the user’s language preferences. The strings contain additional information that is important for the user to know about the route. For example, a string might note that a portion of the route is closed during the winter or after big storms.