Google Maps has finally added real-time transit data, but only for users in six locations, Digital Spy reports.

The Android firm has teamed up with 25 transportation partners to add live data for routes in the UK, Netherlands, Budapest, Chicago, Seattle, and San Francisco.

Maps users in supported locations will be shown live arrivals for buses, metros and subway systems, and be alerted to any delays.

Google has also refreshed the app to provide clearer courses of action, with recommended routes displayed alongside a list of alternative directions so users have options.

The app is being rolled out to Android and iOS devices now, although it is yet to begin appearing on the latter.

Rival service Apple Maps is also believed to be adding live transport information, with the feature expected to be included with iOS 9.