https://medium.com/ai%C2%B3-theory-practice-business/google-ai-machine-learning-model-can-predict-bus-delays-a155a1ec6a97

Google Maps introduced live traffic delays for buses, forecasting bus delays in hundreds of cities world-wide, ranging from Atlanta to Zagreb to Istanbul to Manila and more. This improves the accuracy of transit timing for over sixty million people. This system, first launched in India three weeks ago, is driven by a machine learning model that combines real-time car traffic forecasts with data on bus routes and stops to better predict how long a bus trip will take.