The largest transit options supported include CATS buses and LYNX trains in the Charlotte area, GoTransit buses in the Raleigh-Durham-Chapel Hill area, GTA buses in Greensboro, and inter-city PART buses in the Piedmont Triad area.
Apple Maps also appears to support transit directions in a few additional areas of California, including Bakersfield and Fresno, complementing the previously supported areas of Los Angeles, San Francisco, San Diego, and others.
The feature can be accessed by tapping the Transit tab or button in Apple Maps on iPhone, iPad, Mac, or Apple Watch.
Apple Maps has supported transit since 2015, with an initial rollout in Baltimore, Berlin, Boston, Chicago, London, Los Angeles, Mexico City, New York, Philadelphia, San Francisco, Sydney, Toronto, and China. Since then, Apple has expanded the feature to dozens of additional cities around the world.
Google Maps has also supported navigation via public transportation for several years now, including in the Charlotte, Raleigh, and Greensboro areas, but Apple Maps is slowly catching up with detailed routing info.
In related news, Apple at its WWDC keynote on Monday announced that CarPlay will support Google Maps, Waze, and other third-party navigation apps with a paired iPhone running iOS 12, released in beta yesterday.